Open source (137)

Descent II

Also known as Descent 2

First-Person Shooter, 1995
Playable demo (installed), Playable demo, Playable demo, Preview, Extra

Digger Remastered

Arcade, 1999
Freeware, Freeware, Freeware, Extra, Source code

DOOM

Also known as Doom: Evil Unleashed

First-Person Shooter, 1993
Shareware (installed), Shareware

DOOM II

Also known as DOOM II: Hell on Earth

First-Person Shooter, 1994

Doomdark's Revenge PC

Turn-Based Strategy, 1991
Freeware, Source code

Dr. Mind

Traditional, 2019
Freeware, Source code

Duke Nukem 3D

First-Person Shooter, 1996
Shareware (installed), Shareware

Dungeons of Noudar 3D

Role-Playing, 2018
Freeware (installed), Freeware, Source code

Emeritus Pong

Arcade, 2008
Freeware (installed), Freeware, Source code, System component, Freeware

Floppy Bird

Arcade, 2014
Freeware, Source code

fRaBs

Platform, 2000
Freeware (installed), Freeware

Fruit Land

Puzzle, 2001
Freeware (installed), Freeware

The Gates of Skeldal

Also known as Brány Skeldalu

Role-Playing, 1998
Playable demo

Giddy 3: The Retro Eggsperience

Platform, 2000
Freeware (installed), Freeware, Freeware

Gladiator

Role-Playing, 1995
Shareware, Source code

Glizda

Arcade, 1998
Freeware (installed), Freeware, Source code