Apart from osu!, I'm also playing SoulWorker, Minecraft and Transformice (Usually out of boredom, I just find osu! much more fun, but this is highly subjective).
Used to play Geometry Dash a lot, but I stopped a while ago.
In general, if I have the free time, I'm sticking to osu!, except if there's someone from my irl friends who wants to play something else w/ me (saying 'if' because that's rare af, I think I'm starting to get ignored by them just because I don't want to play League again).
Although, if there are videos on YouTube that catch my eye, and I'm bored from osu!, I'd rather spend my time watching them instead of playing any of the listed games above.