TitForTat 1.0


Category: Entertainment
Price: Free (iTunes)

Description:

Prisoner's Dilemma is a problem of game theory originally formulated at RAND during the 50's as a way to model the Cold War nuclear standoff. The classical form of the problem is presented as follows:
Two suspects are arrested by the police. The police have insufficient evidence for a conviction, and, having separated both prisoners, visit each of them to offer the same deal. If one testifies (defects from the other) for the prosecution against the other and the other remains silent (cooperates with the other), the betrayer goes free and the silent accomplice receives the full 10-year sentence. If both remain silent, both prisoners are sentenced to only six months in jail for a minor charge. If each betrays the other, each receives a five-year sentence. Each prisoner must choose to betray the other or to remain silent. Each one is assured that the other would not know about the betrayal before the end of the investigation. How should the prisoners act?
T*t For Tat is a strategy for the iterated Prisoner's Dilemma game. It was first introduced by Anatol Rapoport in Robert Axelrod's tournaments in the 80's. A player using this strategy will start by cooperating and then use the opponent's choice from previous turn. If the opponent has cheated, the player will cheat. If the opponent has cooperated, the player will cooperate.
This application simulates an iterated Prisoner's Dilemma game. On a 64x64 map all players play a round of Prisoner's Dilemma with each of its neighbors. The payoff of the game contributes or diminishes the player's health. Players that loose all health are eliminated from the map and are replaced by a player having the characteristics of the healthiest neighbor.
TitForTat



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