Linux

Freeciv

macOS, Amiga, Windows, and 1 more

Marko Lindqvist

World of Padman

macOS, Linux, Mac OS, and 1 more

UFO: Alien Invasion

Linux, Windows

FreeOrion

macOS, Windows, Linux

Geoff the Medio

Cube 2: Sauerbraten

macOS, Windows, Linux

Wouter van Oortmerssen

Neverball

Android, Windows, Linux

Enigma

macOS, Mac OS, Windows, and 1 more

Armagetron Advanced

macOS, Windows, Linux

Frozen Bubble

macOS, Windows, Linux, and 2 more

Unknown Horizons

macOS, Linux, Windows

Chromium B.S.U.

iOS, macOS, PlayStation Portable, and 2 more

GL-117

macOS, Windows, Linux

Blob Wars: Metal Blob Solid

macOS, Windows, Linux

Mari0

Android, macOS, Windows, and 1 more

Freedoom

macOS, Disk Operating System, Windows, and 2 more

Kolf

Linux

Lugaru

macOS, Windows, Linux

Wolfire Games

MegaMek

macOS, Windows, Linux

RARS

Linux

SimCity

web browser, Wii, Windows, and 11 more

Nintendo Entertainment Analysis & Development, Maxis

Scorched 3D

macOS, Windows, Linux

Crossfire

Linux, macOS, Mac OS, and 1 more

Pingus

macOS, Windows, Linux

Ingo Ruhnke

Ryzom

iOS, macOS, Linux, and 2 more

PlaneShift

macOS, Mac OS, Windows, and 1 more

Egoboo

macOS, Windows, Linux

Torus Trooper

macOS, Windows, Linux

ABA Games

Tux, of Math Command

Linux, macOS, Windows

Bill Kendrick

X-Moto

macOS, Windows, Linux

openBVE

macOS, Windows, Linux

Christopher Lees