Quake, a classic first person shooter released in 1996 by Id Software. Now open source, this demo is playable in the browser as a Native Client module.
Click the game area below to give it keyboard focus, then press the spacebar to activate the game menu. Select single player (hit return to select) then select new game. Controls: arrow keys to move, space to jump, control key to fire, numeric keys to select various weapons aquired along the way. Audio is also supported on systems with audio drivers installed. Multiplayer mode is not supported. Loading and saving game progress is not supported.