Open source (169)

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

Supernova

Adventure, 1986
Full version

TecnoballZ

Arcade, 1992
Full version (installed), Full version

TerraScape - Breakdown Velocity

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

Tetris (Alchemic)

Puzzle, 2004
Freeware

Tetris (Johan Peitz)

Puzzle, 1997
Freeware, Source code

Tic-Tac-Toe

Traditional, 2014
Freeware

Triplane Turmoil

Shooter, 1996
Full version

Twinsen's Odyssey

Also known as Little Big Adventure 2, LBA 2, Relentless 2

Adventure, 1997
Playable demo

Velena

Traditional, 1997
Freeware, Source code

Vertigo

Simulation, 1995
Freeware (installed), Freeware, Source code

Vitetris

Puzzle, 2008
Freeware, Source code, Freeware

Vlak

Arcade, 1993
Freeware, Source code, Freeware