Quake III Arena is a 1999 multiplayer-focused first-person shooter developed by id Software.
Notable features of Quake III Arena include a minimalist design, very extensively customizable settings such as field of view, texture detail and enemy model; and advanced movement features such as strafe-jumping and rocket-jumping.
Quake III Arena comes with several gameplay modes: Free for All (FFA), a classic deathmatch, where each player competes against the rest for the highest score, Team Deathmatch (TDM), where usually two teams of four compete for the highest team frag (kill) total, Tournament (1v1), a deathmatch between two players, usually ending after a set time and Capture the Flag, which is played on symmetrical maps where teams have to recover the enemy flag from the opponents' base while retaining their own.
Setup documentation for Metanef user:
Under Linux:
Download the Q3A_Linux.deb file.
In the terminal, cd to the directory where the deb file has been downloaded.
Do: sudo dpkg -i Q3A_Linux.deb
Do: sudo apt install quake3
Go to your apps menu, look for "Quake 3 Arena" and click it to launch it.
In the game, when the screen shows "PLEASE ENTER YOUR CD KEY" just press Enter and click "ACCEPT" (bottom right).
Go to Multiplayer > Specify (bottom left) > Address.
Then type: metanef.org
Then click "FIGHT" to join the game!