The Ultimate Trivia Challenge [Steam, Official Site] is a game that will test your knowledge about various subjects, it has Linux support and it might be a good choice for when you're having a little party.
Disclosure: Key provided by the developer through our Steam Curator.
About the game:
How well do you know your trivia? Test your knowledge in The Ultimate Trivia Challenge!
Trivia has never been so much fun. Challenge yourself or have a trivia night with friends and family in Party Mode! Choose from the most popular trivia categories including Movies, People, Places, History, Science, Music, Sports, Famous Quotes and Spelling. If that's not enough, give the wheel challenge a spin or give yourself a break and test your sound quizzing skills with Name That Sound!
It pulls in questions from a range of categories including Movies, People & Places, History, Science and plenty more. You can play it by yourself to test your brain, or play with 2-4 other people when you're having a little gathering.
I tested it out and the Linux version works perfectly. One word of warning though: some of the sports related questions were very American, so I really didn't have a clue. I think they could have done a slightly better job of making some questions a little more generic, but it's not a bad trivia game.
It might not be the most exciting game overall, but it's obviously important that Linux has access to wide array of genres to appeal to as many people as possible.