Quake III Arena happened in 1999.

Quake III Arena was created on 1999-12-02.

You simply take the Modded file and drag it into the folder in the Program Files for Quake III Arena named "Mods". Once you do this, go to "Mods" in the menu of Quake III arena and they will appear in the playable characters list. (NOTE:These models do not work in online servers unless they are allowed)

retard it's the same game, it's just called quake 3 arena.

The Game 'OpenArena' is a first person shooter computer game. It is an open source game, and is based on the deathmatch style of the game 'Quake III Arena'.