Indie games

Indie games are games developed by small teams. For an overview of indie games in general, one may refer to the ; this article is specifically for indie games created with the Doom engine or one of its source ports.

An indie game is a special case of a total conversion. While a total conversion is still meant to be loaded as a mod, and therefore requires the base game data, an indie game is fully standalone and does not require ownership of any other game to be played.

Some indie games utilize the Freedoom IWAD as a bootstrap for custom content or include a fake IWAD that contain the minimum amount of lumps required to launch a game.

Vanilla
Relatively few indie games target the vanilla Doom engine, since it does not have any provision to support custom IWADs and offer very little ways of customizing the game behavior. The use of DeHackEd offers more possibilities but since distributing a modified copy of the original executable is technically copyright infringement, a standalone game will still have to be distributed with a source port, or only be distributed as game data and leave obtaining the executable to the end user.
 * Hacx
 * REKKR

Clones
A few of the vanilla-compatible games are aimed mostly at providing a free/libre clone of a commercial Doom engine game, and therefore do not seek to offer different gameplay but merely original assets allowing to play third-party content made for the original game.
 * Blasphemer
 * Freedoom
 * The People's Doom
 * Zauberer

ZDoom

 * Action Doom 2: Urban Brawl
 * Barista
 * Chex Quest 3
 * Delaweare
 * Foreverhood
 * Harmony
 * Haze (Lost in Cold Haze)
 * Mayhem Mansion

GZDoom

 * The Adventures of Square
 * A Janitor's Nightmare
 * Appetite for Detention
 * Ashes Afterglow
 * Beer Drinkin' Terrorist Hunter
 * Behead the Undead 2: Project Crypt
 * Bloodwar
 * Castlevania: Simon's Destiny
 * The Cenote
 * The Crimson Deed
 * Cursed Maze
 * Decadence
 * Daytime Drama (WIGZDoom fork)
 * Daytime Drama 2 (WIGZDoom fork)
 * Dismantled
 * Dynamite Duchess
 * Elderjam
 * The Forestale
 * GZ PT
 * Hedon (hGZDoom fork)
 * Hedon 2
 * Hunter's Moon
 * I.M Meen TC
 * Kid 4 $29.99
 * Lenny!
 * Lycanthorn
 * Lycanthorn II
 * Magical Mary: Redthorn's Family Ransom (modified GZDoom fork)
 * Membrane
 * Memoirs of Magic
 * nu//void
 * Project Osiris
 * REM
 * Retroninjacyberassassin
 * Return of the Triad
 * Rise of the Wool Ball
 * Scoot Hard DX (WIGZDoom fork)
 * SharpShooter3D
 * Shrine
 * Shrine II
 * Snap the Sentinel
 * Solace Dreams
 * Spooky's House of Jump Scares TC (GZSpooky fork)
 * The Inquisitor 3D
 * Total Chaos
 * Vomitoreum
 * Wolfenstein: Blade of Agony
 * Zerstörer: Dead Zone
 * Zombies Ate My Neighbors TC

GZDoom-GPL

 * Call of Abdulov

GLOOME

 * Cursed Maze: Gloome Edition
 * Nido Force
 * Nocturne in Yellow
 * Xenomia

Zandronum

 * HaloDoom: Code of Silence
 * Jurassic Rift (Also for Skulltag)
 * Mega Man 8-Bit Deathmatch
 * Tomb Fetus

Q-Zandronum

 * Quake Champions: Doom Edition (Also for Zandronum)

EDGE

 * Aliens: Stranded
 * Goldeneye Doom2
 * Robotech: FirstGen

Custom engine

 * Cybershade (derived from Chocolate Doom)
 * Sonic Robo Blast 2
 * SRB2 Kart

Works in progress
These games have been announced, but not released yet.
 * The Age of Hell
 * Barely Breathing
 * Beyond Sunset
 * Combat Train
 * Darkadia
 * Deluge
 * Disdain
 * Eternity Blitz
 * Fury's Sky
 * Hands of Necromancy
 * Hellslinger
 * Mala Petaka
 * Operation ECHO
 * POSSEST
 * Project Absentia
 * Relentless Frontier
 * Rise of the Abyssal
 * Selaco
 * SLaVE
 * Supplice
 * Stellar Valkyrie