This game's system is based on Wizards of the Coast's Star Wars Roleplaying Game, which is based on the d20 role-playing game system derived from the Third Edition Dungeons & Dragons rules. Combat is round-based; time is divided into discrete rounds, and combatants attack and react simultaneously. However, the number of actions a combatant may perform each round is limited. While each round's duration is a fixed short interval of real time, the player can configure the combat system to pause at specific events or at the end of each round.