ReGen is a mutator that allows players and bots to ReGenerate health points when hurt. You can set a lot of thing in the Mod Menu: ReGen Limit: amount of health points at which player stops ReGenerating. ReGen Rate: amount of health points ReGenerated per second. Remove/change all health pickups (vials, packs,etc). Remove/change all armor pickups (thigh pads, etc). Set a new Starting Health. Also, ReGenerating players and bots are surrounded by a green ReGen glow-effect, and emit a faint green glow. ReGenerating players hear a ReGen heartbeat sound-effect every second they ReGenerate health points.