An '''act structure''' is when a game is divided into distinct acts, parts, chapters, episodes or otherwise called parts with a designated start and stop. In some games the whole game is one '''act''', thus making it a one act structure. Other games have more acts, that are defined by a start and an end, with an '''act brake''' between the acts. Usually the drama of a game is focused on different themes in different acts, or just an accelerating drama with a climax and a resolution in the last act following a classic formula dramatic arc. The act brakes may or may not include a [[Time Jump|time jump]].<br>
The act structure of a game is either visible and utilized as a technique in conjunction with the players or it is a technique used by the organizers to decide when organizer controlled events are suppose supposed to happen. <br>
In a visible act structure organizers can focus on different themes or have different rules to create a dramatic shift in the game between acts. For instance, you can have a rule about conflict resolution that varies over time: <br>