Hi there, i don't know if is already a post about it, but i want to share this game with everyone!
This game is Osu!, and is a rythm game where you need to hit circles, yes, circles. LOL. The concept is follow the rythm and pass maps, is a totally based skill game and for fun!. Also, Osu! have other "game modes" like Catch the beat, Taiko and Mania!. Check it out at: https://osu.ppy.sh/
You can see here some gameplays: https://www.youtube.com/watch?v=rT8cIkSnryE

I instantly love you. Only three of my friends, plus me play this game. This is legitimately my favorite game.

This is a dupe. Though, I would keep this one for this actually has a description of the game.

I think that the only information i can add is that you play maps, maps with music, you can download them in the osu! page and install them, and you can create your owns maps with your own music.
Is really popular anime music and vocaloids in this game.
pd: sorry for my bad english q-q

For a while this had been my favorite game and I really really enjoyed it, but the only problem is that it's so freakin' hard.. and eventually I just kind of lost interest. xD I tried creating and editing my maps but I kind of just made it worst haha.. not my type?

No @daez, you just need more practice. And if can't become a mapper, why not try to be a skinner?

This game is great for those with dedication, it is mostly based on skill rather how much a person acually plays it, I've had this game for qiut a while and I happy with my rank, I'm surprised they managed to make a game that is mostly based on skill.

if you love this game you should try out cytus
the concept is almost th same except that you dont get to play your songs, they give you the songs. by far it still one of the best games i played.