The Game Census
McOsu cover art

McOsu

McKay · 2017-03-20

Steam

Indie

Modes: Single player

Releases: Mar 20, 2017 (Mac), Mar 20, 2017 (PC (Microsoft Windows)), Mar 20, 2017 (Linux)

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.

87
playing now
89%
positive of 6.4k reviews
Very Positive
steam rating
1,000,000–2,000,000
owners (SteamSpy est.)
platinum
deck/linux tier (ProtonDB)
Free
steam price (US)

87 players in-game as of 2026-08-30 17:00 UTC (census sample)

Health check

Healthy
  • · 87 players in-game at the last census sample.
  • · 235 reviews in the last 8 weeks (~29/week).
  • · Review velocity down 18% vs the prior 8 weeks.
  • · Top 7% of 18,161 Indie games in the census by review count.

Review momentum

PositiveNegative
20520520182026Week of 2018-01-01: 40 positiveWeek of 2018-01-01: 4 negativeWeek of 2018-02-01: 40 positiveWeek of 2018-02-01: 7 negativeWeek of 2018-03-01: 40 positiveWeek of 2018-03-01: 9 negativeWeek of 2018-04-01: 19 positiveWeek of 2018-04-01: 2 negativeWeek of 2018-05-01: 33 positiveWeek of 2018-05-01: 6 negativeWeek of 2018-06-01: 20 positiveWeek of 2018-06-01: 6 negativeWeek of 2018-07-01: 46 positiveWeek of 2018-07-01: 5 negativeWeek of 2018-08-01: 30 positiveWeek of 2018-08-01: 4 negativeWeek of 2018-09-01: 22 positiveWeek of 2018-09-01: 3 negativeWeek of 2018-10-01: 18 positiveWeek of 2018-10-01: 3 negativeWeek of 2018-11-01: 64 positiveWeek of 2018-11-01: 5 negativeWeek of 2018-12-01: 20 positiveWeek of 2018-12-01: 9 negativeWeek of 2019-01-01: 23 positiveWeek of 2019-01-01: 6 negativeWeek of 2019-02-01: 22 positiveWeek of 2019-02-01: 7 negativeWeek of 2019-03-01: 26 positiveWeek of 2019-03-01: 1 negativeWeek of 2019-04-01: 23 positiveWeek of 2019-04-01: 5 negativeWeek of 2019-05-01: 29 positiveWeek of 2019-05-01: 4 negativeWeek of 2019-06-01: 80 positiveWeek of 2019-06-01: 7 negativeWeek of 2019-07-01: 107 positiveWeek of 2019-07-01: 13 negativeWeek of 2019-08-01: 19 positiveWeek of 2019-08-01: 8 negativeWeek of 2019-09-01: 22 positiveWeek of 2019-09-01: 4 negativeWeek of 2019-10-01: 38 positiveWeek of 2019-10-01: 3 negativeWeek of 2019-11-01: 93 positiveWeek of 2019-11-01: 8 negativeWeek of 2019-12-01: 59 positiveWeek of 2019-12-01: 3 negativeWeek of 2020-01-01: 37 positiveWeek of 2020-01-01: 8 negativeWeek of 2020-02-01: 48 positiveWeek of 2020-02-01: 4 negativeWeek of 2020-03-01: 52 positiveWeek of 2020-03-01: 7 negativeWeek of 2020-04-01: 62 positiveWeek of 2020-04-01: 4 negativeWeek of 2020-05-01: 49 positiveWeek of 2020-05-01: 7 negativeWeek of 2020-06-01: 81 positiveWeek of 2020-06-01: 5 negativeWeek of 2020-07-01: 81 positiveWeek of 2020-07-01: 11 negativeWeek of 2020-08-01: 65 positiveWeek of 2020-08-01: 9 negativeWeek of 2020-09-01: 64 positiveWeek of 2020-09-01: 3 negativeWeek of 2020-10-01: 78 positiveWeek of 2020-10-01: 4 negativeWeek of 2020-11-01: 101 positiveWeek of 2020-11-01: 9 negativeWeek of 2020-12-01: 93 positiveWeek of 2020-12-01: 10 negativeWeek of 2021-01-01: 132 positiveWeek of 2021-01-01: 16 negativeWeek of 2021-02-01: 143 positiveWeek of 2021-02-01: 10 negativeWeek of 2021-03-01: 171 positiveWeek of 2021-03-01: 18 negativeWeek of 2021-04-01: 175 positiveWeek of 2021-04-01: 16 negativeWeek of 2021-05-01: 205 positiveWeek of 2021-05-01: 22 negativeWeek of 2021-06-01: 174 positiveWeek of 2021-06-01: 16 negativeWeek of 2021-07-01: 191 positiveWeek of 2021-07-01: 16 negativeWeek of 2021-08-01: 183 positiveWeek of 2021-08-01: 10 negativeWeek of 2021-09-01: 115 positiveWeek of 2021-09-01: 13 negativeWeek of 2021-10-01: 116 positiveWeek of 2021-10-01: 15 negativeWeek of 2021-11-01: 159 positiveWeek of 2021-11-01: 14 negativeWeek of 2021-12-01: 110 positiveWeek of 2021-12-01: 13 negativeWeek of 2022-01-01: 114 positiveWeek of 2022-01-01: 20 negativeWeek of 2022-02-01: 84 positiveWeek of 2022-02-01: 13 negativeWeek of 2022-03-01: 98 positiveWeek of 2022-03-01: 16 negativeWeek of 2022-04-01: 89 positiveWeek of 2022-04-01: 17 negativeWeek of 2022-05-01: 78 positiveWeek of 2022-05-01: 13 negativeWeek of 2022-06-01: 89 positiveWeek of 2022-06-01: 16 negativeWeek of 2022-07-01: 93 positiveWeek of 2022-07-01: 18 negativeWeek of 2022-08-01: 86 positiveWeek of 2022-08-01: 7 negativeWeek of 2022-09-01: 51 positiveWeek of 2022-09-01: 17 negativeWeek of 2022-10-01: 64 positiveWeek of 2022-10-01: 15 negativeWeek of 2022-11-01: 79 positiveWeek of 2022-11-01: 12 negativeWeek of 2022-12-01: 50 positiveWeek of 2022-12-01: 14 negativeWeek of 2023-01-01: 74 positiveWeek of 2023-01-01: 14 negativeWeek of 2023-02-01: 58 positiveWeek of 2023-02-01: 13 negativeWeek of 2023-03-01: 69 positiveWeek of 2023-03-01: 14 negativeWeek of 2023-04-01: 54 positiveWeek of 2023-04-01: 13 negativeWeek of 2023-05-01: 55 positiveWeek of 2023-05-01: 8 negativeWeek of 2023-06-01: 44 positiveWeek of 2023-06-01: 5 negativeWeek of 2023-07-01: 59 positiveWeek of 2023-07-01: 10 negativeWeek of 2023-08-01: 46 positiveWeek of 2023-08-01: 4 negativeWeek of 2023-09-01: 47 positiveWeek of 2023-09-01: 6 negativeWeek of 2023-10-01: 45 positiveWeek of 2023-10-01: 10 negativeWeek of 2023-11-01: 48 positiveWeek of 2023-11-01: 7 negativeWeek of 2023-12-01: 39 positiveWeek of 2023-12-01: 8 negativeWeek of 2024-01-01: 36 positiveWeek of 2024-01-01: 11 negativeWeek of 2024-02-01: 34 positiveWeek of 2024-02-01: 5 negativeWeek of 2024-03-01: 47 positiveWeek of 2024-03-01: 6 negativeWeek of 2024-04-01: 34 positiveWeek of 2024-04-01: 8 negativeWeek of 2024-05-01: 37 positiveWeek of 2024-05-01: 10 negativeWeek of 2024-06-01: 41 positiveWeek of 2024-06-01: 11 negativeWeek of 2024-07-01: 40 positiveWeek of 2024-07-01: 6 negativeWeek of 2024-08-01: 48 positiveWeek of 2024-08-01: 6 negativeWeek of 2024-09-01: 45 positiveWeek of 2024-09-01: 5 negativeWeek of 2024-10-01: 33 positiveWeek of 2024-10-01: 6 negativeWeek of 2024-11-01: 36 positiveWeek of 2024-11-01: 9 negativeWeek of 2024-12-01: 38 positiveWeek of 2024-12-01: 6 negativeWeek of 2025-01-01: 45 positiveWeek of 2025-01-01: 6 negativeWeek of 2025-02-01: 37 positiveWeek of 2025-02-01: 7 negativeWeek of 2025-03-01: 49 positiveWeek of 2025-03-01: 5 negativeWeek of 2025-04-01: 26 positiveWeek of 2025-04-01: 5 negativeWeek of 2025-05-01: 29 positiveWeek of 2025-05-01: 6 negativeWeek of 2025-06-01: 38 positiveWeek of 2025-06-01: 9 negativeWeek of 2025-07-01: 41 positiveWeek of 2025-07-01: 6 negativeWeek of 2025-08-01: 36 positiveWeek of 2025-08-01: 3 negativeWeek of 2025-09-01: 22 positiveWeek of 2025-09-01: 4 negativeWeek of 2025-10-01: 21 positiveWeek of 2025-10-01: 8 negativeWeek of 2025-11-01: 30 positiveWeek of 2025-11-01: 4 negativeWeek of 2025-12-01: 28 positiveWeek of 2025-12-01: 2 negativeWeek of 2026-01-01: 18 positiveWeek of 2026-01-01: 7 negativeWeek of 2026-02-01: 28 positiveWeek of 2026-02-01: 6 negativeWeek of 2026-03-01: 18 positiveWeek of 2026-03-01: 5 negativeWeek of 2026-04-01: 22 positiveWeek of 2026-04-01: 4 negativeWeek of 2026-05-01: 24 positiveWeek of 2026-05-01: 8 negativeWeek of 2026-06-01: 38 positiveWeek of 2026-06-01: 2 negativeWeek of 2026-07-01: 23 positiveWeek of 2026-07-01: 2 negativeWeek of 2026-08-01: 13 positiveWeek of 2026-08-01: 2 negative
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

92402026-08-06 21:00 — 73 players2026-08-07 05:00 — 40 players2026-08-07 13:00 — 76 players2026-08-07 21:00 — 59 players2026-08-08 05:00 — 54 players2026-08-08 13:00 — 77 players2026-08-08 21:00 — 70 players2026-08-09 05:00 — 51 players2026-08-09 13:00 — 78 players2026-08-09 21:00 — 71 players2026-08-10 05:00 — 51 players2026-08-10 14:00 — 75 players2026-08-10 22:00 — 66 players2026-08-11 06:00 — 54 players2026-08-11 14:00 — 75 players2026-08-12 21:00 — 67 players2026-08-14 05:00 — 46 players2026-08-15 13:00 — 61 players2026-08-16 21:00 — 76 players2026-08-18 04:00 — 42 players2026-08-19 12:00 — 68 players2026-08-20 19:00 — 86 players2026-08-22 02:00 — 70 players2026-08-23 10:00 — 72 players2026-08-24 18:00 — 80 players2026-08-26 02:00 — 77 players2026-08-27 10:00 — 43 players2026-08-28 17:00 — 88 players2026-08-30 01:00 — 61 players2026-08-30 17:00 — 87 players
Concurrent players, hourly average, last 30 days (census samples).

Twitch viewers

002026-08-26 20:34 — 0 viewers2026-08-26 21:34 — 0 viewers2026-08-26 22:34 — 0 viewers2026-08-26 23:34 — 0 viewers2026-08-27 01:34 — 0 viewers2026-08-27 02:34 — 0 viewers2026-08-27 03:34 — 0 viewers2026-08-27 04:34 — 0 viewers2026-08-27 05:34 — 0 viewers2026-08-27 06:34 — 0 viewers2026-08-27 07:33 — 0 viewers2026-08-27 08:34 — 0 viewers
Hourly Twitch viewers (census snapshots).

Details

WindowsLinuxSingle-playerTracked Controller SupportVR SupportedSteam WorkshopFamily Sharing3 DLC

1 supported languages: English

Where its players are

Share of Steam reviews by language (top languages measured) — a proxy for where the player base lives.

Player tags

2DVRFPSAnimeIndieMusicHorrorRhythmDifficultMultiplayer

Census log

Computed from census-recorded observations only — dates are observation dates.

Players also track

Forgotton AnneWorld War 3Bronze Age - HD EditionApsulov: End of Gods

Similarity via IGDB.

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