The air is so humid and hot that I've begun sweating. That can't happen. I can't sweat. There isn't anything to sweat. I'm scared. This has to be an illusion... or does reality not matter in this place? Lithium is a FPS-RPG hybrid building on traditional Doom gameplay with leveling and upgrades, also featuring mechanics such as an inventory system, deadlier enemies, monster mod and multiplayer compatibility, and a sci-fi story shrouded in the supernatural, inspired by games like EYE: Divine Cybermancy, Shin Megami Tensei, and the Touhou series. A significant amount of features are planned still, but the core of the mod is completed.