Install ioquake3 by entering the following commands in the terminal:
sudo apt update sudo apt install ioquake3
Description:
Game engine for 3D first person shooter games
This package installs a modified version of the ioQuake3 game engine, which can be used to play various games based on that engine, such as OpenArena, Quake III: Arena, World of Padman and Urban Terror. . This package alone isn't of any use; to get a playable game, install openarena or another suitable set of game data.
Homepage: https://ioquake3.org/
Version: 1.36+u20180108~dfsg-2
Section: universe/games