A battle system is a set of rules and mechanics that govern how combat occurs in games, particularly in video games and tabletop role-playing games. It defines how characters or units engage in conflict, including actions like attacking, defending, and using special abilities. The system often includes elements like turn order, health points, and damage calculations to determine the outcome of encounters. Different types of battle systems exist, such as turn-based and real-time systems. In a turn-based system, players take turns to make decisions, while in a real-time system, actions occur simultaneously. Each system offers unique strategies and experiences, influencing gameplay and player engagement.