Half-Life, released in 1998 by Valve, was a landmark first-person shooter set in the Black Mesa Research Facility, where Gordon Freeman fights soldiers and alien creatures. In the game, enemies that take massive damage from explosives or heavy weapons do not simply fall down; they gib, breaking into chunks that scatter across the floor. That gory mechanic became a memorable part of the original game's combat, and players and editors have since reused its distinctive splat in gameplay videos, parodies and memes to mark kills that go far beyond a normal death.