Simulator handles when there are no Greed matches to randomly simulate.

app/lib/simulator/Simulator.coffee

@@ -37,6 +37,10 @@ module.exports = class Simulator extends CocoClass
         console.warn "There was an error fetching two games! #{JSON.stringify errorData}"
       success: (taskData) =>
         return if @destroyed
+        unless taskData
+          @trigger 'statusUpdate', "No games to simulate. Trying another game in #{@retryDelayInSeconds} seconds."
+          @simulateAnotherTaskAfterDelay()
+          return
         @trigger 'statusUpdate', 'Setting up simulation...'
         #refactor this
         @task = new SimulationTask(taskData)

server/queues/scoring.coffee

@@ -138,6 +138,9 @@ module.exports.getTwoGames = (req, res) ->
     selection = "team totalScore transpiledCode submittedCodeLanguage teamSpells levelID creatorName creator submitDate"
     LevelSession.count queryParams, (err, numberOfHumans) =>
       if err? then return errors.serverError(res, "Couldn't get the number of human games")
+      unless numberOfHumans
+        res.send(204, "No games to score.")
+        return res.end()
       humanSkipCount = Math.floor(Math.random() * numberOfHumans)
       ogreCountParams =
         "levelID": "greed"
@@ -145,6 +148,9 @@ module.exports.getTwoGames = (req, res) ->
         "team":"ogres"
       LevelSession.count ogreCountParams, (err, numberOfOgres) =>
         if err? then return errors.serverError(res, "Couldnt' get the number of ogre games")
+        unless numberOfOgres
+          res.send(204, "No games to score.")
+          return res.end()
         ogresSkipCount = Math.floor(Math.random() * numberOfOgres)
 
         query = LevelSession