| 1520 | Entertainment: Video Games | Multiple Choice | Medium | In the Portal series, Aperture Science was founded under what name in the early 1940s? |
| 1519 | Entertainment: Video Games | Multiple Choice | Easy | In Portal 2, how did CEO of Aperture Science, Cave Johnson, presumably die? |
| 1518 | Entertainment: Video Games | Multiple Choice | Medium | In Left 4 Dead, what is the name of the Special Infected that is unplayable in Versus mode? |
| 1514 | Entertainment: Video Games | Multiple Choice | Medium | In Left 4 Dead, what is the name of the virus, as designated by CEDA, that causes most humans to turn into the Infected? |