Linux

Glest

Windows, Linux

OpenArena

Android, macOS, Windows, and 1 more

Secret Maryo Chronicles

macOS, Windows, Linux

Rigs of Rods

macOS, Mac OS, Windows, and 1 more

GLtron

macOS, Windows, Linux, and 1 more

Vega Strike

macOS, Linux, Windows

Jump 'n Bump

macOS, Disk Operating System, Windows, and 4 more

OpenCity

Linux

Globulation 2

macOS, Windows, Linux

Liquid War

macOS, Disk Operating System, Windows, and 1 more

GNU Project

Widelands

macOS, Linux, Windows

Frets on Fire

macOS, Mac OS, Windows, and 1 more

Unreal Voodoo

openBVE

macOS, Windows, Linux

Christopher Lees

X-Moto

macOS, Windows, Linux

Egoboo

macOS, Windows, Linux

PlaneShift

macOS, Mac OS, Windows, and 1 more

Pingus

macOS, Windows, Linux

Ingo Ruhnke

Scorched 3D

macOS, Windows, Linux

SimCity

web browser, Wii, Windows, and 11 more

Nintendo Entertainment Analysis & Development, Maxis

RARS

Linux

MegaMek

macOS, Windows, Linux

Lugaru

macOS, Windows, Linux

Wolfire Games

Kolf

Linux

Freedoom

macOS, Disk Operating System, Windows, and 2 more

Mari0

Android, macOS, Windows, and 1 more

Blob Wars: Metal Blob Solid

macOS, Windows, Linux

Chromium B.S.U.

iOS, macOS, PlayStation Portable, and 2 more

Unknown Horizons

macOS, Linux, Windows

Frozen Bubble

macOS, Windows, Linux, and 2 more

Armagetron Advanced

macOS, Windows, Linux