A review of iterated prisoner's dilemma strategies

The iterated prisoner's dilemma game is a widely used tool for modelling and formalization of complex interactions within groups. Every player tries to find the best strategy which would maximize long-term payoffs. Tournaments were organized to determine whether there is a single best stable strategy. This paper presents a summary of tournaments held in 1980, 2004 and 2005, reviews strategies which were presented during the last 30 years, both in tournaments and in scientific literature and outlines current issues and trends.