Video Game Preservation's repositories
princeofpersia
Prince of Persia (1989) by Jordan Mechner for the Apple II
oregontrail
The Oregon Trail (1975) by Don Rawitsch / MECC.
creatures3
Creatures 3 (1999) by Creature Labs
actuasoccer96
Actua Soccer '96 (1996) by Gremlin Interactive.
lba1-classic
Little Big Adventure (1994) by Adeline Software International
lba2-classic
Little Big Adventure 2 (1997) by Adeline Software International
zork-mdl-1977
Source code for a 1977 version of Zork
quadrilateralcowboy
Source code for Quadrilateral Cowboy (2016)
thirtyflightsofloving
Source code of Thirty Flights of Loving (2012)
gravitybone
Source code of Gravity Bone (2008)