Released Mar 20, 2017 Free Very Positive Counts toward your Steam games

McOsu

By McKay

Rhythm Free to Play Music Anime VR Indie Difficult SingleplayerGreat SoundtrackPsychological HorrorMultiplayer2D

Track this game Steam page

Followers —

Reviews 6,396 Very Positive

Players yesterday 80 at the busiest moment

Owners 1M–2M estimated

McOsu is a game tagged Rhythm, Free to Play and Music by McKay, released Mar 20, 2017. It has 6,396 Steam reviews (Very Positive). It has an estimated 1M–2M owners on Steam. The Steam games most like it include Quaver, Soundelta and Project: Bits.

A free open-source circle-clicking rhythm game practice client for osu! beatmaps with Virtual Reality support. McOsu is developed separately from and has no direct affiliation with osu! or ppy Pty Ltd.

From the Steam page

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<a href="https://launchrivals.com/games/607260-mcosu"><img src="https://launchrivals.com/games/607260/badge.png" alt="McOsu launch date" width="320" height="84"></a>

<a href="https://launchrivals.com/games/607260-mcosu"><img src="https://launchrivals.com/games/607260/badge.png?theme=light" alt="McOsu launch date" width="320" height="84"></a>

Quaver 85% match · Rhythm, Free to Play, Music
Soundelta 79% match · Rhythm, Free to Play, Music
Project: Bits 79% match · Rhythm, Free to Play, Music
Milthm 69% match · Rhythm, Free to Play, Music
MuseSwipr 68% match · Rhythm, Free to Play, Music
AUDICA: Rhythm Shooter 67% match · Rhythm, Music, VR
BeatShips 67% match · Rhythm, Free to Play, Music
AliveInVR 65% match · Free to Play, Music, VR
LoveBeat 64% match · Rhythm, Free to Play, Music
CoLane 64% match · Rhythm, Free to Play, Music

Steam data

Everything Steam lists for McOsu · record updated 20 hours ago

Steam store

Overview

App ID607260

Release dateMar 20, 2017

Last change number40102718

Last record update20 hours ago

App type: Game
Developer: McKay
Publisher: McKay
Steam profile: Counts toward game count and achievement totals · checked Nov 1, 2025
Website: github.com/McKay42/McOsu
Links: Discord

Language	Interface	Full audio	Subtitles
English	Yes

Windows macOS Linux

Steam Deck: Unknown

Single-playerTracked controller supportVR supportedSteam WorkshopFamily Sharing

Patches

Build	Branch	Updated
26116942	wasapi-test	Oct 21, 2026
26116919	cutting-edge	Oct 21, 2026
25274529	public	Sep 12, 2026
21183214	previous-version	Feb 20, 2026

Packages & DLC

ID	Name	Price (US)
608160	Not on the store yet	—
608170	Not on the store yet	—
608180	Not on the store yet	—

Depots

ID	Name	Systems	Size	Download	Manifest
228990	— shared from 228980	Windows	—	—	—
607261	—	Windows	68.9 MB	20.4 MB	3372609387182835768
607262	—	Linux	25.4 MB	10.4 MB	4815585761923020711
607263	—	Linux	25.4 MB	10.4 MB	2762289812211844710
607264	—	macOS	21.7 MB	6.6 MB	5960928338905586369

Branch	Build	Updated	Access
public	25274529	Sep 12, 2026	Open
wasapi-test Windows only, ultra low latency audio	26116942	Oct 21, 2026	Open
cutting-edge Next version, update preview	26116919	Oct 21, 2026	Open
previous-version Fallback if something breaks	21183214	Feb 20, 2026	Open