Leveling up is the process in role-playing games by which characters gain levels. The purpose of leveling up is to improve character stats and reflect the character's growth in skill. Sometimes characters learn new abilities or techniques after leveling up. Leveling up is usually accomplished by acquiring a certain number of experience points.
In some games, the player is allowed to influence the leveling up process by choosing which stats are improved or what abilities are learned. In other games the process is automatic and the player has no control over it.