Game
Free to play App 607260
McOsu
McKay · released Mar 20, 2017
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.
Price
Free
US store
Reviews
88%
6,400 · Very Positive
Playing now
35
sampled 14h ago
24h peak
35
all-time seen 45
Followers
—
Steam community hub
Owners (est.)
~256K
128K – 410K
YouTube activity
0
videos · 30 d12
creators6.2K
views · 1 yTwitch activity
—
avg viewers · 30 d—
hours watched · 30 d—
streamers · 30 dProduct info
from Steam's PICS · read 2d ago- Change number
- 40,831,702 · seen 2d ago
- Public build
- 25,274,529 · Sep 12, 2026 (2mo ago)
- Operating systems
- windows, macos, linux
- Architecture
- —
- Install size
- 148 MB · 50 MB download
- Install folder
McOsu- Controller support
- —
- Metacritic
- —
- Homepage
- github.com/McKay42/McOsu
- Release state
- released
- Community
- hub · Workshop
Steam Deck
UnknownNo Deck test results published.
Branches · 4
every build Steam serves for this app| Branch | Build | Updated | Description |
|---|---|---|---|
| public | 25,274,529 | Sep 12, 2026 · 2mo ago | |
| wasapi-test | 26,573,838 | Nov 10, 2026 · 3d ago | Windows only, ultra low latency audio |
| cutting-edge | 26,573,824 | Nov 10, 2026 · 3d ago | Next version, update preview |
| previous-version | 25,274,529 | Sep 12, 2026 · 2mo ago | Fallback if something breaks |
Build history
every build id we have seen on a branch (history starts with our first read)| Build | Branch | Released | First seen |
|---|---|---|---|
| 26,573,838 | wasapi-test | Nov 10, 2026 19:05 | 3d ago |
| 26,573,824 | cutting-edge | Nov 10, 2026 19:05 | 3d ago |
| 26,116,942 | wasapi-test | Oct 21, 2026 20:39 | 3d ago |
| 26,116,919 | cutting-edge | Oct 21, 2026 20:36 | 3d ago |
| 25,274,529 | previous-version | Sep 12, 2026 19:36 | 3d ago |
| 25,274,529 | public | Sep 12, 2026 19:36 | 3d ago |
Depots · 5
content of the public branchLaunch options · 4
| Executable | OS | Description |
|---|---|---|
McEngine.exe |
windows | |
McEngine_dx11.exe-novr |
windows | on Desktop |
McEngine-novr |
linux 64-bit | on Desktop |
McEngine-novr |
macos 64-bit | on Desktop |
Languages · 1
| Language | Interface | Full audio | Subtitles |
|---|---|---|---|
| English | ✓ | — | — |
Packages · 0
all packagesNo packages recorded yet.
Bundles · 0
all bundlesNot part of any bundle we know.
DLC in product info · 3
includes DLC not sold separatelyChange numbers
all changes#40,831,702 · 2d ago#40,806,518 · 3d ago
Updates · patch notes
Steam announcements tagged as patch notes, linked to the public build they followed
No patch notes seen yet for this game.