A common assumption in game theory is that players concentrate on one game at a time. However, in everyday life, we play many games and make many decisions at the same time, and, thus, we have to decide how best to divide our limited attention across these settings. In this paper we ask how players solve this attention-allocation problem and how their decision affects the way players behave in any given game when that game is viewed in isolation. We find that the attention of players is attracted to particular features of the games they play: the maximum payoff in the game, the minimum payoff, the degree of inequality in the game’s payoff, whether the game has zero payoffs, the complexity of the game, and the type of game being played. Moreover, how much attention a subject gives to a particular game depends on the other game that he or she is simultaneously attending to.