diff --git a/app/lib/simulator/Simulator.coffee b/app/lib/simulator/Simulator.coffee
index 8c4d9df17..b89677512 100644
--- a/app/lib/simulator/Simulator.coffee
+++ b/app/lib/simulator/Simulator.coffee
@@ -74,7 +74,7 @@ module.exports = class Simulator extends CocoClass
       return
 
     @supermodel ?= new SuperModel()
-
+    @supermodel.resetProgress()
     @levelLoader = new LevelLoader supermodel: @supermodel, levelID: levelID, sessionID: @task.getFirstSessionID(), headless: true
     if @supermodel.finished()
       @simulateGame()
diff --git a/app/models/SuperModel.coffee b/app/models/SuperModel.coffee
index ef68d39c9..cbfc1d2d2 100644
--- a/app/models/SuperModel.coffee
+++ b/app/models/SuperModel.coffee
@@ -162,6 +162,7 @@ module.exports = class SuperModel extends Backbone.Model
     @trigger('loaded-all') if @finished()
     
   setMaxProgress: (@maxProgress) ->
+  resetProgress: -> @progress = 0
   clearMaxProgress: ->
     @maxProgress = 1
     _.defer @updateProgress