Overview
Sequential Game
A sequential game is a situation where the actors in the game each make a set of decisions in a given order which determine the final outcome of the game. That is, player 1 makes a decision, then player 2 sees what player 1 did, and then she makes a decision and so on.
Consider the following diagram.
Player 1 makes the decision at decision 1. Then Player 2 makes the decision, either at Decision 2 or Decision 3, which determines the outcome of the game. The diagram above is often referred to as a tree, it shows the possible paths of the game branching out from each decision point.