1 vs. 100 was a massively multiplayer online Xbox Live adaptation of the trivia game show of the same name. It was delisted on Feb 15, 2010, less than 3 months after launch. At the beginning of each 1 vs. 100 Live round, a player was selected as "The One" and 100 players were selected to be "The Mob". Everyone else remained in "The Crowd". Selection is based on weekly, round, and season (lifetime) score. The game's rules were nearly identical to the game show's: a question is posed, and both The One and The Mob must select an answer from three choices. If The One gets the question wrong, the game is over and the prize money is split up amongst The Mob. If The One gets the answer right, members of The Mob who got the question wrong are eliminated. The payout would go up for every tenth member of The Mob eliminated. The One could opt to quit with their winnings at various intervals, or press their luck and continue on. The Live version added the notion of "The Crowd", which allowed hundreds of thousands of players to compete alongside The Mob and The One. The top three members of The Crowd were awarded an Xbox Live Arcade game.

1 vs. 100 was a massively multiplayer online Xbox Live adaptation of the trivia game show of the same name. It was delisted on Feb 15, 2010, less than 3 months after launch. At the beginning of each 1 vs. 100 Live round, a player was selected as "The One" and 100 players were selected to be "The Mob". Everyone else remained in "The Crowd". Selection is based on weekly, round, and season (lifetime) score. The game's rules were nearly identical to the game show's: a question is posed, and both The One and The Mob must select an answer from three choices. If The One gets the question wrong, the game is over and the prize money is split up amongst The Mob. If The One gets the answer right, members of The Mob who got the question wrong are eliminated. The payout would go up for every tenth member of The Mob eliminated. The One could opt to quit with their winnings at various intervals, or press their luck and continue on. The Live version added the notion of "The Crowd", which allowed hundreds of thousands of players to compete alongside The Mob and The One. The top three members of The Crowd were awarded an Xbox Live Arcade game.