diff --git a/app/locale/pl.coffee b/app/locale/pl.coffee
index 056fdc59f..d8917fbb2 100644
--- a/app/locale/pl.coffee
+++ b/app/locale/pl.coffee
@@ -4,7 +4,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     no_ie: "CodeCombat nie działa na Internet Explorer 8 i starszych. Przepraszamy!" # Warning that only shows up in IE8 and older
     no_mobile: "CodeCombat nie został zaprojektowany dla urządzeń przenośnych, więc mogą występować pewne problemy w jego działaniu!" # Warning that shows up on mobile devices
     play: "Graj" # The big play button that opens up the campaign view.
-#    play_campaign_version: "Play Campaign Version" # Shows up under big play button if you only play /courses
+    play_campaign_version: "Zagraj w Kampanię" # Shows up under big play button if you only play /courses
     old_browser: "Wygląda na to, że twoja przeglądarka jest zbyt stara, by obsłużyć CodeCombat. Wybacz..." # Warning that shows up on really old Firefox/Chrome/Safari
     old_browser_suffix: "Mimo tego możesz spróbować, ale prawdopodobnie gra nie będzie działać."
     ipad_browser: "Zła wiadomość: CodeCombat nie działa na przeglądarce w iPadzie. Dobra wiadomość: nasza aplikacja na iPada czeka na akceptację od Apple."
@@ -14,16 +14,16 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     for_developers: "Dla developerów" # Not currently shown on home page.
     or_ipad: "Albo ściągnij na swojego iPada"
 
-#  new_home:
-#    slogan: "The most engaging game for learning programming."
-#    classroom_edition: "Classroom Edition:"
-#    learn_to_code: "Learn to code:"
-#    teacher: "Teacher"
-#    student: "Student"
-#    play_now: "Play Now"
-#    im_a_teacher: "I'm a Teacher"
-#    im_a_student: "I'm a Student"
-#    learn_more: "Learn more"
+  new_home:
+    slogan: "Najlepsza gra do nauki programowania!"
+    classroom_edition: "Wersja szkolna:"
+    learn_to_code: "Naucz się programowania:"
+    teacher: "Nauczyciel"
+    student: "Uczeń"
+    play_now: "Zagraj teraz!"
+    im_a_teacher: "Jestem Nauczycielem"
+    im_a_student: "Jestem Uczniem"
+    learn_more: "Dowiedz się więcej"
 #    classroom_in_a_box: "A classroom in-a-box for teaching computer science."
 #    codecombat_is: "CodeCombat is a platform for students to learn computer science while playing through a real game."
 #    our_courses: "Our courses have been specifically playtested to excel in a classroom setting, even by teachers with little to no prior programming experience."
@@ -34,8 +34,8 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 #    educator_resources: "Educator resources"
 #    course_guides: "and course guides"
 #    teaching_computer_science: "Teaching computer science does not require a costly degree, because we provide tools to support educators of all backgrounds."
-#    accessible_to: "Accessible to"
-#    everyone: "everyone"
+    accessible_to: "Dostępne dla"
+    everyone: "każdego"
 #    democratizing: "Democratizing the process of learning coding is at the core of our philosophy. Everyone should be able to learn to code."
 #    forgot_learning: "I think they actually forgot that they were actually learning something."
 #    wanted_to_do: " Coding is something I've always wanted to do, and I never thought I would be able to learn it in school."
@@ -58,26 +58,26 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 #    agency: "CodeCombat is a game that gives players that agency and confidence with our robust typed code engine, which helps beginner and advanced students alike write proper, valid code."
 #    curious: "Curious? Request a demo and we'll show you the ropes"
 #    create_class: "Or create a class and see it for yourself!"
-#    request_demo: "Request a Demo"
-#    create_a_class: "Create a Class"
-#    have_an_account: "Already have an account?"
-#    logged_in_as: "You are currently logged in as"
-#    view_my_classes: "View my classes"
-#    computer_science: "Computer science courses for all ages"
-#    show_me_lesson_time: "Show me lesson time estimates for:"
-#    curriculum: "Total curriculum hours:"
-#    ffa: "Free for all students"
-#    lesson_time: "Lesson time:"
-#    coming_soon: "Coming soon!"
-#    courses_available_in: "Courses are available in JavaScript, Python, and Java (coming soon!)"
-#    boast: "Boasts riddles that are complex enough to fascinate gamers and coders alike."
+    request_demo: "Zapytaj o wersję demo"
+    create_a_class: "Stwórz klasę"
+    have_an_account: "Posiadasz już konto?"
+    logged_in_as: "Jesteś zalogowany jako"
+    view_my_classes: "Pokaż moje klasy"
+    computer_science: "Lekcje informatyki dla osób w każdym wieku."
+    show_me_lesson_time: "Pokaż mi przewidywany czas nauki dla:"
+    curriculum: "Łączny czas programu:"
+    ffa: "Darmowe dla wszystkich uczniów"
+    lesson_time: "Czas lekcji:"
+    coming_soon: "Wkrótce!"
+    courses_available_in: "Kursy dostępne są w języku JavaScript, Python, oraz Java (wkrótce!)"
+    boast: "Nasze zagadki są wyzwaniem zarówno do programistów jak i dla typowych graczy."
 #    winning: "A winning combination of RPG gameplay and programming homework that pulls off making kid-friendly education legitimately enjoyable."
 #    run_class: "Everything you need to run a computer science class in your school today, no CS background required."
 
   nav:
     play: "Poziomy" # The top nav bar entry where players choose which levels to play
     community: "Społeczność"
-#    courses: "Courses"
+    courses: "Kursy"
     editor: "Edytor"
     blog: "Blog"
     forum: "Forum"
@@ -94,11 +94,11 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     twitter_follow: "Subskrybuj"
     teachers: "Nauczyciele"
     careers: "Kariera"
-#    facebook: "Facebook"
-#    twitter: "Twitter"
-#    create_a_class: "Create a Class"
-#    other: "Other"
-#    learn_to_code: "Learn to Code!"
+    facebook: "Facebook"
+    twitter: "Twitter"
+    create_a_class: "Stwórz klasę"
+    other: "Inne"
+    learn_to_code: "Naucz się programowania!"
 
   modal:
     close: "Zamknij"
@@ -117,7 +117,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 
   play:
     play_as: "Graj jako " # Ladder page
-#    compete: "Compete!" # Course details page
+    compete: "Ukończono!" # Course details page
     spectate: "Oglądaj" # Ladder page
     players: "graczy" # Hover over a level on /play
     hours_played: "rozegranych godzin" # Hover over a level on /play
@@ -140,9 +140,9 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     subscription_required: "Wymagana subskrypcja"
     anonymous: "Anonimowy gracz"
     level_difficulty: "Poziom trudności: "
-#    play_classroom_version: "Play Classroom Version" # Choose a level in campaign version that you also can play in one of your courses
+    play_classroom_version: "Zagraj w wersję szkolną" # Choose a level in campaign version that you also can play in one of your courses
     campaign_beginner: "Kampania dla początkujących"
-    awaiting_levels_adventurer_prefix: "Wydajemy pięć poziomów na tydzień." # {change}
+    awaiting_levels_adventurer_prefix: "Co tydzień publikujemy nowe poziomy!"
     awaiting_levels_adventurer: "Zapisz się jako Podróżnik,"
     awaiting_levels_adventurer_suffix: "aby jako pierwszy grać w nowe poziomy."
     adjust_volume: "Dopasuj głośność"
@@ -179,9 +179,9 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     log_in: "Zaloguj się używając hasła"
     required: "Musisz się zalogować zanim przejdziesz dalej."
     login_switch: "Masz już konto?"
-#    school_name: "School Name and City"
-#    optional: "optional"
-#    school_name_placeholder: "Example High School, Springfield, IL"
+    school_name: "Nazwa szkoły i miasto"
+    optional: "opcjonalnie"
+    school_name_placeholder: "Na przykład: Szkoła Podstawowa, Warszawa"
 
   recover:
     recover_account_title: "Odzyskaj konto"
@@ -286,10 +286,10 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     years: "lat"
 
   play_level:
-#    completed_level: "Completed Level:"
-#    course: "Course:"
+    completed_level: "Ukończony poziom:"
+    course: "Kurs:"
     done: "Zrobione"
-#    next_level: "Next Level:"
+    next_level: "Następny poziom:"
     next_game: "Następna gra"
     show_menu: "Pokaż menu gry"
     home: "Strona główna" # Not used any more, will be removed soon.
@@ -316,7 +316,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     victory_title_suffix: " ukończony"
     victory_sign_up: "Zarejestruj się, by zapisać postępy"
     victory_sign_up_poke: "Chcesz zapisać swój kod? Stwórz bezpłatne konto!"
-    victory_rate_the_level: "Oceń poziom: " # {change}
+    victory_rate_the_level: "Jak podobał ci się ten poziom? "
     victory_return_to_ladder: "Powrót do drabinki"
     victory_saving_progress: "Zapisywanie postępów"
     victory_go_home: "Powrót do strony głównej"
@@ -359,7 +359,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     infinite_loop_reset_level: "Resetuj poziom"
     infinite_loop_comment_out: "Comment Out My Code"
     tip_toggle_play: "Włącz/zatrzymaj grę naciskając Ctrl+P."
-    tip_scrub_shortcut: "Ctrl+[ i Ctrl+] przesuwają czas." # {change}
+    tip_scrub_shortcut: "Ctrl+[ i Ctrl+] przesuwają czas."
     tip_guide_exists: "Klikając Przewodnik u góry strony uzyskasz przydatne informacje."
     tip_open_source: "CodeCombat ma w 100% otwarty kod!"
     tip_tell_friends: "Podoba ci się CodeCombat? Opowiedz o nas swoim znajomym!"
@@ -386,30 +386,30 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     tip_first_language: "Najbardziej zgubną rzeczą jakiej możesz się nauczyć jest twój pierwszy język programowania. - Alan Kay"
     tip_hardware_problem: "P: Ilu programistów potrzeba by wymienić żarówkę?  O: Żadnego,to problem sprzętowy."
     tip_hofstadters_law: "Prawo Hofstadtera: Każdy projekt zabiera więcej czasu, niż planujesz, nawet jeśli przy planowaniu uwzględnisz prawo Hofstadtera."
-#    tip_premature_optimization: "Premature optimization is the root of all evil. - Donald Knuth"
+    tip_premature_optimization: "Przedwczesna optymalizacja jest źródłem wszelkiego zła. - Donald Knuth"
 #    tip_brute_force: "When in doubt, use brute force. - Ken Thompson"
 #    tip_extrapolation: "There are only two kinds of people: those that can extrapolate from incomplete data..."
 #    tip_superpower: "Coding is the closest thing we have to a superpower."
 #    tip_control_destiny: "In real open source, you have the right to control your own destiny. - Linus Torvalds"
-#    tip_no_code: "No code is faster than no code."
-#    tip_code_never_lies: "Code never lies, comments sometimes do. — Ron Jeffries"
+    tip_no_code: "Nie ma szybszego kodu od braku kodu"
+    tip_code_never_lies: "Kod nigdy nie kłamie, komentarze czasami tak. — Ron Jeffries"
 #    tip_reusable_software: "Before software can be reusable it first has to be usable."
     tip_optimization_operator: "Każdy język programowania ma operator optymalizujący. W większości z nich tym operatorem jest ‘//’"
 #    tip_lines_of_code: "Measuring programming progress by lines of code is like measuring aircraft building progress by weight. — Bill Gates"
 #    tip_source_code: "I want to change the world but they would not give me the source code."
 #    tip_javascript_java: "Java is to JavaScript what Car is to Carpet. - Chris Heilmann"
 #    tip_move_forward: "Whatever you do, keep moving forward. - Martin Luther King Jr."
-#    tip_google: "Have a problem you can't solve? Google it!"
+    tip_google: "Masz problem z którym nie dajesz sobie razy? Użyj Google!"
 #    tip_adding_evil: "Adding a pinch of evil."
 #    tip_hate_computers: "That's the thing about people who think they hate computers. What they really hate is lousy programmers. - Larry Niven"
-#    tip_open_source_contribute: "You can help CodeCombat improve!"
+    tip_open_source_contribute: "Możesz pomóc w ulepszeniu CodeCombat!"
 #    tip_recurse: "To iterate is human, to recurse divine. - L. Peter Deutsch"
 #    tip_free_your_mind: "You have to let it all go, Neo. Fear, doubt, and disbelief. Free your mind. - Morpheus"
-#    tip_strong_opponents: "Even the strongest of opponents always has a weakness. - Itachi Uchiha"
+    tip_strong_opponents: "Nawet najsilniejsi przeciwnicy mają słabe punkty. - Itachi Uchiha"
 #    tip_paper_and_pen: "Before you start coding, you can always plan with a sheet of paper and a pen."
 #    tip_solve_then_write: "First, solve the problem. Then, write the code. - John Johnson"
 #    tip_compiler_ignores_comments: "Sometimes I think that the compiler ignores my comments."
-#    tip_understand_recursion: "The only way to understand recursion is to understand recursion."
+    tip_understand_recursion: "Żeby zrozumieć rekurencję, trzeba najpierw zrozumieć rekurencję."
 #    tip_life_and_polymorphism: "Open Source is like a totally polymorphic heterogeneous structure: All types are welcome."
 
   game_menu:
@@ -469,16 +469,16 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 
   subscribe:
     comparison_blurb: "Popraw swoje umiejętności z subskrypcją CodeCombat!"
-    feature1: "Ponad 100 poziomów w 4 różnych śwoatach" # {change}
-    feature2: "10 potężnych, <strong>nowych bohaterów</strong> z unikalnymi umiejętnościami!" # {change}
-    feature3: "Ponad 70 bonusowych poziomów" # {change}
+    feature1: "Ponad 110 poziomów w 4 różnych światach"
+    feature2: "10 potężnych, <strong>nowych bohaterów</strong> z unikalnymi umiejętnościami!"
+    feature3: "Ponad 80 bonusowych poziomów"
     feature4: "Dodatkowe <strong>{{gems}} klejnotów</strong> co miesiąc!"
     feature5: "Poradniki wideo"
     feature6: "Priorytetowe wsparcie przez e-mail"
     feature7: "Prywatne <strong>Klany</strong>"
     free: "Darmowo"
     month: "miesięcznie"
-#    must_be_logged: "You must be logged in first. Please create an account or log in from the menu above."
+    must_be_logged: "Najpierw musisz się zalogować. UŻyj menu na górze do zalogowania się, lub stworzenia nowego konta."
     subscribe_title: "Zapisz się"
     unsubscribe: "Wypisz się"
     confirm_unsubscribe: "Potwierdź wypisanie się"
@@ -486,17 +486,17 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     thank_you_months_prefix: ""
     thank_you_months_suffix: " - przez tyle miesięcy nas wspierałeś. Dziękujemy!"
     thank_you: "Dziękujemy za wsparcie CodeCombat."
-#    sorry_to_see_you_go: "Sorry to see you go! Please let us know what we could have done better."
-#    unsubscribe_feedback_placeholder: "O, what have we done?"
-#    parent_button: "Ask your parent"
-#    parent_email_description: "We'll email them so they can buy you a CodeCombat subscription."
-#    parent_email_input_invalid: "Email address invalid."
-#    parent_email_input_label: "Parent email address"
-#    parent_email_input_placeholder: "Enter parent email"
-#    parent_email_send: "Send Email"
-#    parent_email_sent: "Email sent!"
-#    parent_email_title: "What's your parent's email?"
-#    parents: "For Parents"
+    sorry_to_see_you_go: "Szkoda, że juz się nie zobaczymy! Powiedz nam co moglibyśmy poprawić"
+    unsubscribe_feedback_placeholder: "Och! Cóżeśmy ci takiego uczynili, że nas opuszczasz?"
+    parent_button: "Zapytaj rodziców o zgodę"
+    parent_email_description: "Wyślemy do nich emaila z możliwością zakupu subskrypcji dla ciebie."
+    parent_email_input_invalid: "Błędny adres email."
+    parent_email_input_label: "Email rodziców"
+    parent_email_input_placeholder: "Wpisz emaila rodziców"
+    parent_email_send: "Wyślij emaila"
+    parent_email_sent: "Email wysłany!"
+    parent_email_title: "Jaki jest emial twoich rodziców?"
+    parents: "Dla Rodziców"
 #    parents_title: "Dear Parent: Your child is learning to code. Will you help them continue?"
 #    parents_blurb1: "Your child has played __nLevels__ levels and learned programming basics. Help cultivate their interest and buy them a subscription so they can keep playing."
 #    parents_blurb1a: "Computer programming is an essential skill that your child will undoubtedly use as an adult. By 2020, basic software skills will be needed by 77% of jobs, and software engineers are in high demand across the world. Did you know that Computer Science is the highest-paid university degree?"
@@ -506,12 +506,13 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 #    payment_methods_title: "Accepted Payment Methods"
 #    payment_methods_blurb1: "We currently accept credit cards and Alipay. You can also PayPal {{three_month_price}} USD to nick@codecombat.com with your account email in the memo to purchase three months' subscription and gems, or ${{year_price}} for a year."
 #    payment_methods_blurb2: "If you require an alternate form of payment, please contact"
-#    sale_button: "Sale!"
+    sale_button: "Wyprzedaż!"
 #    sale_button_title: "Save $21 when you purchase a 1 year subscription"
 #    stripe_description: "Monthly Subscription"
 #    stripe_description_year_sale: "1 Year Subscription (${{discount}} discount)"
 #    subscription_required_to_play: "You'll need a subscription to play this level."
 #    unlock_help_videos: "Subscribe to unlock all video tutorials."
+
 #    personal_sub: "Personal Subscription" # Accounts Subscription View below
 #    loading_info: "Loading subscription information..."
 #    managed_by: "Managed by"
@@ -530,7 +531,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     choose_hero: "Wybierz swojego bohatera"
     programming_language: "Język programowania"
     programming_language_description: "Którego języka programowania chcesz używać?"
-    default: "domyślny"
+    default: "Domyślny"
     experimental: "Eksperymentalny"
     python_blurb: "Prosty ale potężny."
     javascript_blurb: "Język internetu."
@@ -553,10 +554,10 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     backstab: "Cios" # As in "this dagger does this much backstab damage"
     skills: "Umiejętności"
     attack_1: "Zadaje"
-#    attack_2: "of listed"
+    attack_2: "z możliwych"
     attack_3: "obrażeń od broni."
     health_1: "Zdobywa"
-#    health_2: "of listed"
+    health_2: "z możliwych"
     health_3: "wytrzymałości pancerza."
     speed_1: "Idzie do"
     speed_2: "metrów na sekundę."
@@ -609,42 +610,42 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
   about:
 #    main_title: "If you want to learn to program, you need to write (a lot of) code."
 #    main_description: "At CodeCombat, our job is to make sure you're doing that with a smile on your face."
-#    mission_link: "Mission"
-#    team_link: "Team"
-#    community_link: "Community"
-#    story_link: "Story"
-#    careers_link: "Careers"
-#    press_link: "Press"
-#    mission_title: "Our mission: make programming accessible to every student on Earth."
+    mission_link: "Misja"
+    team_link: "Zespół"
+    community_link: "Społeczność"
+    story_link: "Historia"
+    careers_link: "Kariera"
+    press_link: "Prasa"
+    mission_title: "Nasza misja: każdy na Ziemi powinien mieć dostęp do nauki programowania."
 #    mission_description_1: "<strong>Programming is magic</strong>. It's the ability to create things from pure imagination. We started CodeCombat to give learners the feeling of wizardly power at their fingertips by using <strong>typed code</strong>." # {change}
 #    mission_description_2: "As it turns out, that enables them to learn faster too. WAY faster. It's like having a conversation instead of reading a manual. We want to bring that conversation to every school and to <strong>every student</strong>, because everyone should have the chance to learn the magic of programming." # {change}
-#    team_title: "Meet the CodeCombat team"
+    team_title: "Poznaj twórców CodeCombat"
 #    team_values: "We value open and respectful dialog, where the best idea wins. Our decisions are grounded in customer research and our process is focused on delivering tangible results for them. Everyone is hands-on, from our CEO to our Github contributors, because we value growth and learning in our team."
-    nick_title: "Współzałożyciel" # {change}
+    nick_title: "Współzałożyciel, CEO"
     nick_blurb: "Guru Motywacji"
-    matt_title: "Programista" # {change}
+    matt_title: "Współzałożyciel, CTO"
     matt_blurb: "Rowerzysta"
-    cat_title: "Główny Rzemieślnik" # {change}
+    cat_title: "Twórca Gry"
     cat_blurb: "Airbender"
-    scott_title: "Współzałożyciel" # {change}
+    scott_title: "Współzałożyciel, Inżynier Oprogramowania"
     scott_blurb: "Jedyny Rozsądny"
-#    maka_title: "Customer Advocate"
-#    maka_blurb: "Storyteller"
-#    rob_title: "Software Engineer"
-#    rob_blurb: "Codes things and stuff"
-#    josh_c_title: "Game Designer"
-#    josh_c_blurb: "Designs games"
+    maka_title: "Adwokat Użytkowników"
+    maka_blurb: "Bajkopisarz"
+    rob_title: "Inżynier Oprogramowania"
+    rob_blurb: "Programuje różne rzeczy"
+    josh_c_title: "Twórca Gry"
+    josh_c_blurb: "Tworzy nowe gry"
 #    robin_title: "UX Design & Research"
-#    robin_blurb: "Scaffolding"
+    robin_blurb: "Rusztowanie"
     josh_title: "Projektant Gier"
     josh_blurb: "Podłoga to lawa"
     retrostyle_title: "Ilustracje"
     retrostyle_blurb: "RetroStyle Games"
     jose_title: "Muzyka"
     jose_blurb: "Odnosi Sukces"
-#    carlos_title: "Region Manager, Brazil"
-#    carlos_blurb: "Celery Man"
-#    community_title: "...and our open-source community"
+    carlos_title: "Menedżer regionu, Brazylia"
+    carlos_blurb: "Celery Man"
+    community_title: "...oraz nasza społeczność 'open-source'"
 #    community_subtitle: "Over 450 contributors have helped build CodeCombat, with more joining every week!"
 #    community_description_1: "CodeCombat is a community project, with hundreds of players volunteering to create levels, contribute to our code to add features, fix bugs, playtest, and even translate the game into 50 languages so far. Employees, contributors and the site gain by sharing ideas and pooling effort, as does the open source community in general. The site is built on numerous open source projects, and we are open sourced to give back to the community and provide code-curious players a familiar project to explore and experiment with. Anyone can join the CodeCombat community! Check out our"
 #    community_description_link: "contribute page"
@@ -682,17 +683,17 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 #    screenshots_title: "Game Screenshots"
 #    screenshots_hint: "(click to view full size)"
 #    downloads_title: "Download Assets & Information"
-#    about_codecombat: "About CodeCombat"
-#    logo: "Logo"
-#    screenshots: "Screenshots"
-#    character_art: "Character Art"
-#    download_all: "Download All"
-#    previous: "Previous"
-#    next: "Next"
-#    location_title: "We're located in downtown SF:"
+    about_codecombat: "O CodeCombat"
+    logo: "Logo"
+    screenshots: "Zrzuty ekranu"
+    character_art: "Grafiki postaci"
+    download_all: "Pobierz wszystko"
+    previous: "Poprzedni"
+    next: "Następny"
+    location_title: "Nasza siedziba w San Francisco:"
 
-#  teachers:
-#    who_for_title: "Who is CodeCombat for?"
+  teachers:
+    who_for_title: "Dla kogo jest CodeCombat?"
 #    who_for_1: "We recommend CodeCombat for students aged 9 and up. No prior programming experience is needed. We've designed CodeCombat to appeal to both boys and girls."
 #    who_for_2: "Our Courses system allows teachers to set up classrooms, track progress and assign additional content to students through a dedicated interface."
 #    more_info_title: "Where can I find more information?"
@@ -769,17 +770,17 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     wrong_password: "Błędne zdjęcie"
     upload_picture: "Wgraj zdjęcie"
     delete_this_account: "Usuń to konto całkowicie"
-#    reset_progress_tab: "Reset All Progress"
-#    reset_your_progress: "Clear all your progress and start over"
+    reset_progress_tab: "Zresetuj cały postęp"
+    reset_your_progress: "Usuń cały postęp w grze i zacznij od początku"
     god_mode: "TRYB BOGA"
     password_tab: "Hasło"
     emails_tab: "Powiadomienia"
     admin: "Administrator"
-#    manage_subscription: "Click here to manage your subscription."
+    manage_subscription: "Kliknij, aby zarządzać swoimi subskrypcjami."
     new_password: "Nowe hasło"
     new_password_verify: "Zweryfikuj"
     type_in_email: "Wpisz swój email, aby potwierdzić usunięcie konta."
-#    type_in_email_progress: "Type in your email to confirm deleting your progress."
+    type_in_email_progress: "Wpisz swój emial, aby potwierdzić usunięcie całego swojego postępu."
     type_in_password: "Wpisz również swoje hasło."
     email_subscriptions: "Powiadomienia email"
     email_subscriptions_none: "Brak powiadomień e-mail."
@@ -851,7 +852,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     subs_only: "tylko subskrybenci"
     create_clan: "Stwórz nowy klan"
     private_preview: "Podgląd"
-#    private_clans: "Private Clans"
+    private_clans: "Prywatne klany"
     public_clans: "Publiczne klany"
     my_clans: "Moje klany"
     clan_name: "Nazwa klanu"
@@ -905,17 +906,17 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
   courses:
     course: "Kurs"
     courses: "kursy"
-#    create_new_class: "Create New Class"
+    create_new_class: "Stwórz nową klasę"
 #    not_enrolled: "You are not enrolled in this course."
 #    visit_pref: "Please visit the"
 #    visit_suf: "page to enroll."
 #    select_class: "Select one of your classes"
-#    unnamed: "*unnamed*"
-#    select: "Select"
-#    unnamed_class: "Unnamed Class"
-#    edit_settings: "edit class settings"
-#    edit_settings1: "Edit Class Settings"
-#    progress: "Class Progress"
+    unnamed: "*bez_nazwy*"
+    select: "Wybierz"
+    unnamed_class: "Klasa bez nazwy"
+    edit_settings: "edytuj ustawienia klasy"
+    edit_settings1: "Edytuj ustawienia klasy"
+    progress: "Postęp klasy"
     add_students: "Dodaj Studentów"
     stats: "Statystyki"
 #    total_students: "Total students:"
@@ -928,7 +929,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     students: "Studenci"
     students1: "studenci"
 #    concepts: "Concepts"
-#    levels: "levels"
+    levels: "poziomy"
 #    played: "Played"
 #    play_time: "Play time:"
 #    completed: "Completed:"
@@ -940,7 +941,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 #    enter_emails: "Enter student emails to invite, one per line"
 #    send_invites: "Send Invites"
     title: "Tytuł"
-#    description: "Description"
+    description: "Opis"
 #    creating_class: "Creating class..."
 #    purchasing_course: "Purchasing course..."
 #    buy_course: "Buy Course"
@@ -952,7 +953,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 #    enter_number_students: "Enter the number of students you need for this class."
 #    name_class: "Name your class"
 #    displayed_course_page: "This will be displayed on the course page for you and your students. It can be changed later."
-#    buy: "Buy"
+    buy: "Kup"
 #    purchasing_for: "You are purchasing a license for"
 #    creating_for: "You are creating a class for"
 #    for: "for" # Like in 'for 30 students'
@@ -1007,8 +1008,8 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 #    to_assign: "to assign paid courses."
 #    teacher: "Teacher"
 #    complete: "Complete"
-#    none: "None"
-#    save: "Save"
+    none: "Brak"
+    save: "Zapisz"
 #    play_campaign_title: "Play the Campaign"
 #    play_campaign_description: "You’re ready to take the next step! Explore hundreds of challenging levels, learn advanced programming skills, and compete in multiplayer arenas!"
 #    create_account_title: "Create an Account"
@@ -1038,7 +1039,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 #    ready_for_more_1: "Use gems to unlock new items!"
 #    ready_for_more_2: "Play through brand new worlds and challenges"
 #    ready_for_more_3: "Learn even more programming!"
-#    saved_games: "Saved Games"
+    saved_games: "Zapisane gry"
 #    hoc: "Hour of Code"
 #    my_classes: "My Classes"
 #    class_added: "Class successfully added!"
@@ -1046,16 +1047,16 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 #    view_levels: "view levels"
 #    join_class: "Join A Class"
 #    ask_teacher_for_code: "Ask your teacher if you have a CodeCombat class code! If so, enter it below:"
-#    enter_c_code: "<Enter Class Code>"
-#    join: "Join"
+    enter_c_code: "<Wpisz kod klasy>"
+    join: "Dołącz"
 #    joining: "Joining class"
 #    course_complete: "Course Complete"
 #    play_arena: "Play Arena"
-#    start: "Start"
-#    last_level: "Last Level"
+    start: "Start"
+    last_level: "Ostatni poziom"
 #    welcome_to_hoc: "Adventurers, welcome to our Hour of Code!"
-#    logged_in_as: "Logged in as:"
-#    not_you: "Not you?"
+    logged_in_as: "Zalogowany jako:"
+    not_you: "To nie ty?"
 #    welcome_back: "Hi adventurer, welcome back!"
 #    continue_playing: "Continue Playing"
 #    more_options: "More options:"
@@ -1082,32 +1083,32 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 #    keep_student: "Keep Student"
 #    removing_user: "Removing user"
 #    to_join_ask: "To join a class, ask your teacher for an unlock code."
-#    join_this_class: "Join Class"
-#    enter_here: "<enter unlock code here>"
+    join_this_class: "Dołącz do klasy"
+    enter_here: "<tu wpisz kod odblokowujący>"
 #    successfully_joined: "Successfully joined"
 #    click_to_start: "Click here to start taking"
-#    my_courses: "My Courses"
-#    classroom: "Classroom"
+    my_courses: "Moje kursy"
+    classroom: "Szkoła"
 #    use_school_email: "use your school email if you have one"
 #    unique_name: "a unique name no one has chosen"
 #    pick_something: "pick something you can remember"
-#    class_code: "Class Code"
+    class_code: "Kod Klasy"
 #    optional_ask: "optional - ask your teacher to give you one!"
 #    optional_school: "optional - what school do you go to?"
-#    start_playing: "Start Playing"
-#    skip_this: "Skip this, I'll create an account later!"
-#    welcome: "Welcome"
+    start_playing: "Zacznij zabawę"
+    skip_this: "Pomiń to, później założę konto!"
+    welcome: "Witamy!"
 #    getting_started: "Getting Started with Courses"
 #    download_getting_started: "Download Getting Started Guide [PDF]"
 #    getting_started_1: "Create a new class by clicking the green 'Create New Class' button below."
 #    getting_started_2: "Once you've created a class, click the blue 'Add Students' button."
 #    getting_started_3: "You'll see student's progress below as they sign up and join your class."
 #    additional_resources: "Additional Resources"
-#    additional_resources_1_pref: "Download/print our"
-#    additional_resources_1_mid: "Course 1"
-#    additional_resources_1_mid2: "and"
-#    additional_resources_1_mid3: "Course 2"
-#    additional_resources_1_suff: "teacher's guides with solutions for each level."
+    additional_resources_1_pref: "Pobierz/wydrukuj nasze rozwiązania do"
+    additional_resources_1_mid: "Kursu 1"
+    additional_resources_1_mid2: ",oraz"
+    additional_resources_1_mid3: "Kursu 2"
+    additional_resources_1_suff: "wraz z komentarzami do każdego z poziomów."
 #    additional_resources_2_pref: "Complete our"
 #    additional_resources_2_suff: "to get two free enrollments for the rest of our paid courses."
 #    additional_resources_3_pref: "Visit our"
@@ -1119,18 +1120,18 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 #    educator_wiki_pref: "Or check out our new"
 #    educator_wiki_mid: "educator wiki"
 #    educator_wiki_suff: "to browse the guide online."
-#    your_classes: "Your Classes"
-#    no_classes: "No classes yet!"
-#    create_new_class1: "create new class"
-#    available_courses: "Available Courses"
+    your_classes: "Twoje klasy"
+    no_classes: "Nie ma żadnej klasy!"
+    create_new_class1: "stwórz nową klasę"
+    available_courses: "Dostępne kursy"
 #    unused_enrollments: "Unused enrollments available:"
 #    students_access: "All students get access to Introduction to Computer Science for free. One enrollment per student is required to assign them to paid CodeCombat courses. A single student does not need multiple enrollments to access all paid courses."
-#    active_courses: "active courses"
-#    no_students: "No students yet!"
-#    add_students1: "add students"
-#    view_edit: "view/edit"
-#    students_enrolled: "students enrolled"
-#    length: "Length:"
+    active_courses: "aktywne kursy"
+    no_students: "Brak uczniów!"
+    add_students1: "dodaj ucznia"
+    view_edit: "pokaż/edytuj"
+    students_enrolled: "uczniowie biorący udział"
+    length: "Długość:"
 
   classes:
     archmage_title: "Arcymag"
@@ -1151,7 +1152,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     ambassador_title: "Ambasador"
     ambassador_title_description: "(wsparcie)"
     ambassador_summary: "Okiełznaj naszych użytkowników na forum, udzielaj odpowiedzi na pytania i wspieraj ich. Nasi Ambasadorzy reprezentują CodeCombat przed całym światem."
-#    teacher_title: "Teacher"
+    teacher_title: "Nauczyciel"
 
   editor:
     main_title: "Edytory CodeCombat"
@@ -1326,7 +1327,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     simulate_games: "Symuluj gry!"
     games_simulated_by: "Gry symulowane przez Ciebie:"
     games_simulated_for: "Gry symulowane dla Ciebie:"
-#    games_in_queue: "Games currently in the queue:"
+    games_in_queue: "Gier obecnie w kolejce:"
     games_simulated: "Gier zasymulowanych"
     games_played: "Gier rozegranych"
     ratio: "Proporcje"
@@ -1354,7 +1355,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     tutorial_skip: "Pomiń samouczek"
     tutorial_not_sure: "Nie wiesz, co się dzieje?"
     tutorial_play_first: "Rozegraj najpierw samouczek."
-    simple_ai: "Proste AI" # {change}
+    simple_ai: "Proste AI"
     warmup: "Rozgrzewka"
     friends_playing: "Przyjaciele w grze"
     log_in_for_friends: "Zaloguj się by grać ze swoimi znajomymi!"
@@ -1363,7 +1364,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     fight: "Walcz!"
     watch_victory: "Obejrzyj swoje zwycięstwo"
     defeat_the: "Pokonaj"
-#    watch_battle: "Watch the battle"
+    watch_battle: "Oglądaj starcie"
     tournament_started: ", rozpoczęto"
 #    tournament_ends: "Tournament ends"
 #    tournament_ended: "Tournament ended"
@@ -1376,9 +1377,9 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     rules: "Zasady"
     winners: "Zwycięzcy"
     league: "Liga"
-#    red_ai: "Red CPU" # "Red AI Wins", at end of multiplayer match playback
-#    blue_ai: "Blue CPU"
-#    wins: "Wins" # At end of multiplayer match playback
+    red_ai: "Czerwony CPU" # "Czerwony wygrał", at end of multiplayer match playback
+    blue_ai: "Niebieski CPU"
+    wins: "Wygrał!" # At end of multiplayer match playback
     humans: "Czerwoni" # Ladder page display team name
     ogres: "Niebiescy"
 
@@ -1402,8 +1403,8 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     last_earned: "Ostatnio zdobyty"
     amount_achieved: "Ilość"
     achievement: "Osiągnięcie"
-#    current_xp_prefix: ""
-#    current_xp_postfix: " in total"
+    current_xp_prefix: ""
+    current_xp_postfix: " z możliwych"
     new_xp_prefix: "zdobyto "
     new_xp_postfix: ""
     left_xp_prefix: ""
@@ -1412,7 +1413,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 
   account:
     payments: "Płatności"
-#    prepaid_codes: "Prepaid Codes"
+    prepaid_codes: "Kody przedpłacone"
     purchased: "Zakupiono"
     subscription: "Subskrypcje"
     invoices: "Faktury"
@@ -1466,30 +1467,30 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
 
   loading_error:
     could_not_load: "Błąd podczas ładowania danych z serwera"
-    connection_failure: "Błąd połączenia." # {change}
+    connection_failure: "Błąd połączenia."
 #    connection_failure_desc: "It doesn’t look like you’re connected to the internet! Check your network connection and then reload this page."
 #    login_required: "Login Required"
 #    login_required_desc: "You need to be logged in to access this page."
-    unauthorized: "Musisz być zalogowany. Masz może wyłączone ciasteczka?"
-    forbidden: "Brak autoryzacji." # {change}
+    unauthorized: "Musisz być zalogowany. Nie masz czasem wyłączonych ciasteczek?"
+    forbidden: "Brak autoryzacji."
 #    forbidden_desc: "Oh no, there’s nothing we can show you here! Make sure you’re logged into the correct account, or visit one of the links below to get back to programming!"
-    not_found: "Nie znaleziono." # {change}
+    not_found: "Nie znaleziono."
 #    not_found_desc: "Hm, there’s nothing here. Visit one of the following links to get back to programming!"
     not_allowed: "Metoda nie dozwolona."
-    timeout: "Serwer nie odpowiada." # {change}
+    timeout: "Serwer nie odpowiada."
     conflict: "Błąd zasobów."
     bad_input: "Złe dane wejściowe."
     server_error: "Błąd serwera."
-    unknown: "Nieznany błąd." # {change}
+    unknown: "Nieznany błąd."
     error: "BŁĄD"
-#    general_desc: "Something went wrong, and it’s probably our fault. Try waiting a bit and then refreshing the page, or visit one of the following links to get back to programming!"
+    general_desc: "Coś poszło nie tak, prawdopodobnie to nasza wina. Poczekaj chwilę i spróbuj odświeżyć stronę, albo klinij któryś z linków, żeby wrócić do programowania!"
 
   resources:
     level: "Poziom"
     patch: "Łatka"
     patches: "Łatki"
     system: "System"
-#    systems: "Systems"
+    systems: "Systemy"
     component: "Komponent"
     components: "Komponenty"
     hero: "Bohater"
@@ -1505,19 +1506,19 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     boolean_logic: "Algebra Boole'a"
     break_statements: "Klauzula 'break'"
     classes: "Klasy"
-#    continue_statements: "Continue Statements"
+    continue_statements: "Klauzula 'continue'"
     for_loops: "Pętle 'for'"
     functions: "Funkcje"
-#    graphics: "Graphics"
+    graphics: "Grafika"
     if_statements: "Wyrażenia warunkowe"
     input_handling: "Zarządzanie wejściami"
     math_operations: "Operacje matematyczne"
     object_literals: "Operacje na obiektach"
-#    parameters: "Parameters"
+    parameters: "Parametry"
     strings: "Ciągi znaków"
     variables: "Zmienne"
     vectors: "Wektory"
-    while_loops: "Pętle" # {change}
+    while_loops: "Pętle 'while'"
     recursion: "Rekurencja"
 
   delta:
@@ -1593,7 +1594,7 @@ module.exports = nativeDescription: "polski", englishDescription: "Polish", tran
     rights_clarification: "Gwoli wyjaśnienia, wszystko, co jest dostępne w Edytorze Poziomów w celu tworzenia nowych poziomów, podlega licencji CC, podczas gdy zasoby stworzone w Edytorze Poziomów lub przesłane w toku tworzenia poziomu - nie."
     nutshell_title: "W skrócie"
     nutshell_description: "Wszelkie zasoby, które dostarczamy w Edytorze Poziomów są darmowe w użyciu w jakikolwiek sposób w celu tworzenia poziomów. Jednocześnie, zastrzegamy sobie prawo do ograniczenia rozpowszechniania poziomów (stworzonych przez codecombat.com) jako takich, aby mogła być za nie w przyszłości pobierana opłata, jeśli dojdzie do takiej konieczności."
-    canonical: "Angielska wersja tego dokumentu jest ostateczna, kanoniczną wersją. Jeśli zachodzą jakieś rozbieżności pomiędzy tłumaczeniami, dokument anglojęzyczny ma pierwszeństwo."
+    canonical: "Angielska wersja tego dokumentu jest ostateczną, kanoniczną wersją. Jeśli zachodzą jakieś rozbieżności pomiędzy tłumaczeniami, dokument anglojęzyczny ma pierwszeństwo."
 #    third_party_title: "Third Party Services"
 #    third_party_description: "CodeCombat uses the following third party services (among others):"