Open source (165)

Shadow Warrior

Also known as SW, Shadow Warrior 3D, Ninja Master

First-Person Shooter, 1997
Shareware (installed), Shareware, Update

Shaw's Nightmare

First-Person Shooter, 2013
Freeware, Freeware, Source code, FAQ, Extra

Shaw's Nightmare: Fotom Pak

First-Person Shooter, 2017
Freeware

Ski Jump International v3

Also known as SJ3

Sport, 2000
Full version

SLASH

Role-Playing, 1996
Freeware, Source code

SLASH'EM

Also known as Slash'EM

Role-Playing, 1997
Freeware, Source code, System component

Snack Attack!

Arcade, 2001
Freeware, Source code, Editor

Snarf

Shooter, 1988
Shareware (installed), Shareware, Freeware

Sopwith

Shooter, 1986
Freeware (installed), Freeware, Source code

Sopwith (The Author's Edition)

Shooter, 2003
Freeware (installed), Freeware, Source code

Space Plumber

Puzzle, 1997
Freeware, Freeware, Source code

Speed Haste

Racing, 1995
Shareware

Star Control II

Also known as Star Control II: The Ur-Quan Masters, Star Control 2

Adventure, 1992
Playable demo

Station Escape

Adventure, 1993
Freeware (installed), Freeware, Source code

Stellar Conquest III

Also known as Stellar Conquest ]I[, Stellar Conquest III, Hostile Takeover

Turn-Based Strategy, 1994
Shareware, Source code

Sudoku86

Also known as Sudoku

Traditional, 2015
Freeware