Multiplayer-focused DOOM engine that allows deathmatch, coop, and capture the flag mode. Here we are using the Freedom assets so you don't need a copy of the original game to play.
An AppImage for Linux was automatically generated: Odamex-x86_64.AppImage
While Odamex does have a launcher, if requires that you have DOOM assets available locally. It won't launch the game without it, which means you either need the original game data of open assets such as Freedoom.
However, if you connect to the game server directly, odamex will download the required assets automatically from the server.
From the terminal, type:
odamex -connect play.onfoss.org +set cl_name "YourName"
Of course, substitute "YourName" with the in-game name you want.