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83,368 public questions across 1,329 topics. Challenge yourself, or build the perfect quiz for game night.

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Easy Portal

Which composer is credited on Portal alongside Mike Morasky?

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Hard Portal

In Portal lore, what year did GLaDOS flood Aperture with neurotoxin?

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Hard Portal

In Portal lore, Cave Johnson acquired a disused salt mine in which U.S. state?

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Hard Portal

In Portal lore, what product did Aperture Science originally make for the U.S. military?

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Hard Portal

Who voices the corrupted personality cores in Portal 2?

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