Roguelike (16)

Dungeon Crawl: Stone Soup

Role-Playing, 2006
Freeware (installed), Freeware, Source code

Dungeons of Noudar 3D

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

Linley's Dungeon Crawl

Role-Playing, 1997
Freeware (installed), Freeware, Source code, Freeware

MAG

Also known as Mike's Adventure Game

Role-Playing, 1988
Freeware, Source code

NetHack

Role-Playing, 1987
Freeware, System component, Source code

NetHack Plus

Role-Playing, 1994
Freeware

NetHack: Falcon's Eye

Role-Playing, 2000
Freeware, Freeware, Source code

Ragnarok

Also known as Valhalla

Role-Playing, 1992
Full version, Extra

Rogue

Also known as Rogue: Exploring the Dungeons of Doom

Role-Playing, 1984
Freeware

Rogue Clone IV

Also known as DOS Rogue Clone

Role-Playing, 2001
Freeware, Source code

Silmar

Role-Playing, 1991
Shareware

SLASH

Role-Playing, 1996
Freeware, Source code

SLASH'EM

Also known as Slash'EM

Role-Playing, 1997
Freeware, Source code

UnReal World 2.04

Also known as Kingdom: The Far Reaches - Book One, Thayer's Quest

Role-Playing, 1995
Freeware (installed), Freeware

UnReal World 2.15

Role-Playing, 1998
Shareware