Game engine for Classic Doom

Story-driven FPS inspired by WWII shooters from the 90's and early 2000's

Preset-oriented graphical launcher of various ported Doom engines (an alternative to ZDL)

First-person shooter based on the Doom engine

Limit-removing enhanced-resolution Doom source port

Survival horror set on a remote island known as Fort Oasis

First-person shooter based on the Doom engine

Conservative source port

Leading the way in newschool multiplayer Doom online

A modern port of the original Quake engine

Yamagi Quake II is an alternative client for id Software's Quake II

Open source first person shooter

dhewm 3 is a Doom 3 GPL source port

Source port for Build engine games

Survival horror set on a remote island known as Fort Oasis

A modern cross‑platform port of “STAR WARS™: Dark Forces” with mod support

Open source first person shooter

A modernized source port of Hexen II

A Zandronum 3.0 fork with improved netcode, configurable movement and many small tweaks

Deathmatch game based on the Doom engine

a modern QuakeWorld client focused on competitive online play