Deathmatch

Deathmatch (DM) is a widely-used gameplay mode very well integrated into first-person shooter computer games. The term was originally coined by John Romero in 1993 during the development of DOOM. The goal of a deatchmatch game is to kill (or "frag") as many other players as possible in the time given; until the level is completed or until the frag limit or time limit is reached. Once one of these conditions is met the match is over and the winner is whoever has accumulated the most frags.

Team deathmatch is like the above, but with players organised into two or more teams, with each team having its own frag-count. Friendly fire may or may not cause damage, depending on the game and the rules used - if it does, a player that kills a teammate (called a team kill) usually decreases their own score and the team's score by one point. The team with the highest frag-count at the end wins.

Aliases: Slayer and Team Slayer (Halo for Microsoft X-Box), Combat (Rare's Perfect Dark for Nintendo 64)

Other forms of Deathmatch, though not necessarily for a first person shooter include the Super Smash Bros. series' "K.O. Fest" mode.