Arcade

Cave Story NX is a side-action adventure game where you need to jump and shoot. Free and open source game

Mr. Rescue is an arcade styled 2d action game centered around evacuating civilians from burning buildings. Free and open source game

SDLPoP – open-source port of Prince of Persia, based on the disassembly of the DOS version, extended with new features. Free and open source game

OpenTyrian is a port of Tyrian for DOS, a classic arcade shooter with vertical scrolling. A free and open source game

Flood It is a game in which you need to fill the entire board with one color in the fewest possible moves. A free and open source game

Spelunky is a cave exploration and treasure hunt game inspired by classic platformers and roguelikes. Free game

Roll ‘m Up is a professional classic pinball game of the late 90s with great graphics and music. Free game

Cro-Mag Rally is the wildest racing game since man invented the wheel. A free and open source game

Oneko is a kitten that follows a mouse pointer toy on the desktop. A free game

Project: Starfighter is a space shooting game to liberate the universe from the evil company WEAPCO. A free and open source game