PCGame

McOsu

Free rhythm practice client with adjustable beatmaps and experimental modes

McKay · Released Mar 20, 2017

Indie

Reviews
Very Positive
88% of 7,870
Recent reviews
Mostly Positive
76% of 13 in 30 days
Players
40
daily peak, Nov 7, 2026
Steam Deck
Untested
Last update on Steam
1 month ago
Sep 12, 2026
Minimum PC
OpenGL 3.0 compatible
0.5 GB RAM · 0.1 GB disk
Full requirements

What is McOsu?

This free, open-source, single-player rhythm practice client runs osu!(standard) beatmaps. You click circles in time with music and use speed, difficulty, scrubbing, and quick-save controls to practice specific sections; VR and first-person 3D variants are also included.

For you if...

  • +you want detailed practice controls for osu!(standard) beatmaps
  • +you enjoy difficult circle-clicking rhythm play
  • +you want VR or first-person rhythm variants

Not for you if...

  • −you need tutorials for your first osu! experience
  • −you primarily play mania, taiko, or catch beatmaps
  • −you want online rankings or multiplayer support

What players say

88% of 7,870 reviews are positive · 76% of 13 in the last 30 days

Players most often praise the practice tools, especially scrubbing, along with responsive play and good performance on older hardware. The most common complaint is difficult setup, with some players unable to load beatmaps or get controls to respond.

Players over time

▼ -20% vs a month ago

Players online on Steam, one sample a day.

Highest since Sep 2026: 67 players on Sep 22, 2026.

Show the data
DayPlayers
Nov 7, 202640
Nov 6, 202630
Nov 5, 202640
Nov 4, 202640
Nov 3, 202633
Nov 2, 202644
Nov 1, 202644
Oct 31, 202635
Oct 30, 202648
Oct 29, 202644
Oct 28, 202644
Oct 27, 202634
Oct 26, 202653
Oct 25, 202656
Oct 24, 202641
Oct 23, 202652
Oct 22, 202647
Oct 21, 202644
Oct 20, 202653
Oct 19, 202629
Oct 18, 202663
Oct 17, 202650
Oct 16, 202644
Oct 15, 202642
Oct 14, 202645
Oct 13, 202655
Oct 12, 202645
Oct 11, 202658
Oct 10, 202648
Oct 9, 202645
Oct 8, 202654
Oct 7, 202640
Oct 6, 202640
Oct 5, 202655
Oct 4, 202656
Oct 3, 202644
Oct 2, 202648
Oct 1, 202652
Sep 30, 202656
Sep 29, 202655
Sep 28, 202651
Sep 27, 202656
Sep 26, 202662
Sep 25, 202653
Sep 24, 202659
Sep 23, 202651
Sep 23, 202653
Sep 22, 202667
Sep 21, 202654

Screenshots and trailer

McOsu screenshot 1

McOsu system requirements

Minimum: OpenGL 3.0 compatible, 0.5 GB RAM, 0.1 GB of disk space.

As published by the developer.

Can my PC run McOsu?

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Minimum

OS
Windows 7
Processor
Not a Potato™
Graphics
OpenGL 3.0 compatible
Memory
512 MB RAM
Storage
75 MB available space

Recommended

OS
Windows 7 or newer
Processor
Intel® Core™ i5 or better
Graphics
NVIDIA GeForce® GTX 970 (for VR) / AMD Radeon™ R9 290 or better (for VR)
Memory
2 GB RAM
Storage
75 MB available space

Does McOsu have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Does McOsu run on Steam Deck?

Untested Not yet tested by Valve on Steam Deck.

PC version details

DRM
None declared on Steam
Controller
Keyboard and mouse
Platforms
Windows, Linux
Steam features
Workshop, Family Sharing, VR
Languages
Text only: English.

Does McOsu use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam

Tags

Recent updates

3 DLC available.

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