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About Game Theory At Christmas
Game Theory At Christmas is a game built around six non-zero-sum games. You enter numbers, make choices and earn or lose coins according to the outcomes. To advance the story, you need to meet each level’s conditions while avoiding too many losses of star coins and snow coins.
The six games
- Guess the mean 2/3: Enter a number from 0 to 100. The player whose number is closest to two-thirds of the average of everyone’s numbers wins 1,000 coins.
- Dollar auction: Bid between 0 and 1,000 coins. The highest bidder wins the auction, but everyone pays their bid.
- Traveler's dilemma: Enter a number from 0 to 2,000 coins. The player who enters the lowest number receives that amount.
- Prisoner's dilemma: If everyone cooperates, each gets 1,000 coins. If one player betrays, the traitor gets 500 coins; if multiple players betray, everyone loses 500 coins.
- Free rider problem: Choose to ignore or resist. Ignoring costs 300 coins; resisting costs 1,000 coins and ends the round.
- Ultimatum Game: Enter two amounts between 0 and 500 to decide how much money to distribute to others. If someone refuses the distribution, you lose 1,000 coins.
Characters and progression
Accumulated star coins or snow coins can be used to upgrade characters. Each character gains different effects as they level up. Some levels require a character to reach a certain level, and you can replay earlier levels to earn star coins and upgrade your character when you get stuck.
Frequently asked questions
The best price for Game Theory At Christmas is $4.99 at Steam. It is the only shop with an offer that activates in your country.
The minimum requirements for Game Theory At Christmas are: Windows 7, Intel Pentium 4, 200 MB RAM, 200 MB storage. It runs on Windows only. The recommended specs are in the System requirements section.
No. Game Theory At Christmas is a single-player game.
Yes. Game Theory At Christmas is the full base game. You need nothing else to play it.
Steam lets publishers create keys to sell in other shops. Once you activate a key, the game is yours to keep, just like a store purchase.
Disclaimer: CD keys have an inherent 1–2% average failure rate. Check the shop terms for buyer protection info. Steam offers no buyer protection for keys bought in other shops and doesn't refund them.











