Is Osu appears on Steam ? Is there some sort of information ? 
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Osu and steam
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3
No, there is no information for Osu on Steam. You can link it so that you can use the Steam overlay and It'll pop up in your friend's notifications like all the other games, but that's it.
Please open your eyes when browsing and learn how to use search functions. It's going to help you a lot, trust me!
https://osu.ppy.sh/p/search?cx=00771494 ... j201472j11
https://osu.ppy.sh/p/search?cx=00771494 ... j201472j11