McOsu

McOsu

McKay · 2017 · Rhythm, Free to Play, Anime, Music, VR

PC
Mostly Positive70% · 10 📈 Making a comeback 91%59playing now
This game is free to play. Get it on Steam →

Trailers & screenshots

About McOsu

✦ AI summary

McOsu is a free, open-source practice client for osu! beatmaps that prioritizes customization and advanced training tools unavailable in the official game, including speed sliders, beatmap overrides, experimental mods, and a built-in pp counter. It's designed for experienced osu! players looking to improve through practice, with bonus support for VR and first-person 3D gameplay modes.

McOsu is developed separately from and has no direct affiliation with osu! or ppy Pty Ltd.McOsu is NOT osu!

A free open-source circle-clicking rhythm game client for osu!(standard) beatmaps, with the main focus on making practicing easier and customizing gameplay.
It is primarily a practice client for getting better at the "official" game by having tools at your disposal that osu!(stable) does not provide for some reason, it's not supposed to be a perfect copy of osu! though it does get close enough where necessary.
If you have never played osu! before, then I do not recommend using this client (except for VR players + FPoSu players of course), because there are no gameplay tutorials to be found here (just google "osu!" and play the official game which is a lot more polished and has online rankings including multiplayer support etc.).McOsu only supports osu!(standard) beatmaps, while diffs for other gamemodes like mania/taiko/ctb/etc. are simply invisible.

Features:

  • Unlimited Customizability (Options, Console Commands via SHIFT + F1)
  • Beatmap Overrides (Approach Rate, Circle Size, Overall Difficulty, HP Drain)
  • Speed/BPM Slider
  • Scrubbing and Quicksave/load (SHIFT and F6/F7, rebindable, jump to any point in time of a beatmap)
  • Experimental Mods (Wobble, Jigsaw, First Person, Playfield Flipping, Reverse Sliders, etc.)
  • Change mods and options while playing (F1 and CTRL + O)
  • Built-in pp counter (live stats overlay + ranking screen)
  • VR gamemode
  • First-Person 3D gamemode (FPoSu)
  • Steam Workshop support for skins
  • Infinite offline profiles with pp ranking
  • Customizable HP Drain + Notelock algorithms

Beatmaps

  • If you have osu!(stable) installed, then McOsu will load your beatmaps directly from the default osu!(stable) installation path, although custom paths are also possible
  • You can use McOsu without installing osu!(stable) (it is not recommended though), a guide on manual beatmap management is available in the Steam Community Guides

osu! VS McOsu

The intention of this game is neither to replace peppy's client, nor to split the community. McOsu was created partially out of frustration, because osu! is lacking many usability features vital to practicing effectively and efficiently. This is currently being rectified in the rewrite of osu! (called osu!lazer), which is an open-source project anyone can contribute to.

Holodance VS McOsu

While Holodance is focused on providing a full VR rhythm game experience with osu! beatmap compatibility as a sideproject, McOsu tries to bring pure osu! gameplay into Virtual Reality while staying as close to the original as possible.

As a wise man once said, "plz enjoy game".

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If you want, you can help out with McOsu development on Github, or just take a look at the source code, as this is an open-source project.

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Skin Credits:

  • ffffffffffffffffff - "- Jaret - Mish Mosh"
  • irrlux - "Talrava XIV"
  • HazrdMC - "Phaze"
  • Redon - "Aesthetic 1.3"
  • DarkSlayer000 - "xXx_SampleSkin_xXx v1.3"
  • Inori - "Stepmania"
  • taikuta - "Murakumo"
  • Easy - "Burning_Crow V2"
  • Icomoon
  • Freepik

DLC & expansions

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Recommended Jul 17, 2026
mcdonalds osu
Recommended Jul 14, 2026
literally osu with better performance and u can do anything on it to test or idk
Recommended Jul 14, 2026
circles
Recommended Jul 12, 2026
good for if you want to gain pp on osu but on a seperate profile so you can see your skill level in specific skill sets i recomend for anyone who plays osu or wants better aim for something like league of legends or some 2d game that requires aim.
Recommended Jul 10, 2026
Ok.
Recommended Jul 9, 2026
pros: you have full control of your gameplay basically, everything is optimized and the game feels good to play con: no replays

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