McOsu is a free and open source osu!-inspired rhythm game created by McOsu Team. It is a fan-made game based on the popular rhythm game osu! and is intended to be more accessible and easier to mod than the original game. The game features a lot of the same gameplay elements found in osu!, including beatmaps, hit circles, spinners and sliders, but with a simplified user interface and a few extra features. Players can customize their play experience with various skins and beatmaps. McOsu also has a built-in editor to allow players to create their own custom beatmaps. With an active and helpful community, McOsu is an excellent choice for those looking for an osu!-like game that can be played for free or modded to create an entirely new experience.
Discontinued Project Page archived at Google Code.