Celtreos - Celtreos is an Action, Shoot ‘em up, and Single-player Side-scrolling video game developed by Kevin M.
Clone Hero - Clone Hero is a free rhythm game, which can be played with any 5 or 6 button guitar controller...
Osu - Osu is Music, Rhythm, Single and Multiplayer video game developed by Dean Herbert.
Star Conflict - Star Conflict is a free MMO action game and space simulator that was introduced in 2012.
StepMania - Rhythm game for Windows, Mac, and Linux.
Stardust Galaxy Warriors: Stellar Climax - Stardust Galaxy Warriors: Stellar Climax is an Action, Shoot ‘em up, Adventure, and Single-player video game developed and published by Dreamloop Games.