博弈论中，串行博弈，也叫动态博弈，是指在博弈中，一个参与者先于另一个参与者行动。值得注意的是，后者必须至少能获得先发者的部分行为信息，否则行为时间的先后就不会有任何效果。

组合博弈一般是动态博弈。

动态博弈常用逆向归纳法求解。

许多棋类游戏都是序贯博弈，如井字棋、象棋、国际象棋、围棋等。决策树的大小可以根据游戏的复杂性而有所不同，范围从一个小而详尽的游戏树的井字棋，而围棋决策树如此之大，甚至电脑无法完全映射出的非常复杂的博弈树。

In game theory, a sequential game is a game where one player chooses their action before the others choose theirs. Importantly, the later players must have some information of the first's choice, otherwise the difference in time would have no strategic effect. Sequential games hence are governed by the time axis, and represented in the form of decision trees.