The Game Census
Project Rhombus cover art

Project Rhombus

SEROSOO · PsychoFlux Entertainment · 2017-12-07

Steam

ActionCasualIndieFree To Play

Modes: Single player

Releases: Oct 2017 (PC (Microsoft Windows))

Project Rhombus is a rhythm-based casual action game that combines exciting electronic music with stylish flat design. Hold on as long as possible, blocking the oncoming arrows moving to the beat.

Project Rhombus is an Action, Casual, Indie, and Free To Play game released in 2017, priced at $0.99, with an estimated 100,000 to 200,000 owners and a Very Positive review sentiment (93% of 1400 reviews).

0
playing now
93%
positive of 1.4k reviews
Very Positive
steam's rating (official)
100,000–200,000
owners (SteamSpy est.)
gold
deck/linux tier (ProtonDB)
Verified
Steam Deck (Valve)
SteamOS: Playable
$0.99
steam price (US)

0 players in-game as of 2026-10-14 15:00 UTC (census sample)

Health check

Quiet
  • · 0 players in-game at the last census sample.
  • · 8 reviews in the last 8 weeks (~1/week).
  • · Review velocity down 20% vs the prior 8 weeks.
  • · Top 13% of 27,660 Action games in the census by review count.

Health tier since 2026-08-31

Estimated sales: 35k–84k copies

Review-multiple estimate from 1,400 total reviews — how this is computed.

All-time low: $0.79 at Steam (2020-01-25)via IsThereAnyDeal

Review momentum

PositiveNegative
8820172026Week of 2018-01-01: 2 positiveWeek of 2018-07-01: 1 positiveWeek of 2019-04-01: 1 positiveWeek of 2020-01-01: 2 positiveWeek of 2020-02-01: 1 positiveWeek of 2020-03-01: 2 positiveWeek of 2020-04-01: 3 positiveWeek of 2020-05-01: 2 positiveWeek of 2020-06-01: 3 positiveWeek of 2020-07-01: 3 positiveWeek of 2020-07-01: 3 negativeWeek of 2020-08-01: 1 positiveWeek of 2020-08-01: 1 negativeWeek of 2020-09-01: 1 positiveWeek of 2020-10-01: 1 positiveWeek of 2020-10-01: 1 negativeWeek of 2020-11-01: 2 positiveWeek of 2020-11-01: 1 negativeWeek of 2020-12-01: 4 positiveWeek of 2021-01-01: 2 positiveWeek of 2021-02-01: 2 positiveWeek of 2021-02-01: 1 negativeWeek of 2021-03-01: 8 positiveWeek of 2021-04-01: 4 positiveWeek of 2021-05-01: 1 positiveWeek of 2021-06-01: 8 positiveWeek of 2021-06-01: 1 negativeWeek of 2021-07-01: 2 positiveWeek of 2021-08-01: 3 positiveWeek of 2021-09-01: 2 positiveWeek of 2021-09-01: 1 negativeWeek of 2021-10-01: 3 positiveWeek of 2021-11-01: 4 positiveWeek of 2021-12-01: 1 positiveWeek of 2022-01-01: 1 positiveWeek of 2022-02-01: 4 positiveWeek of 2022-02-01: 1 negativeWeek of 2022-03-01: 1 positiveWeek of 2022-04-01: 1 positiveWeek of 2022-05-01: 2 positiveWeek of 2022-06-01: 1 positiveWeek of 2022-06-01: 1 negativeWeek of 2022-07-01: 3 positiveWeek of 2022-08-01: 3 positiveWeek of 2022-10-01: 1 positiveWeek of 2022-11-01: 1 positiveWeek of 2022-12-01: 2 positiveWeek of 2023-01-01: 2 positiveWeek of 2023-02-01: 3 positiveWeek of 2023-03-01: 2 positiveWeek of 2023-05-01: 1 positiveWeek of 2023-07-01: 4 positiveWeek of 2023-08-01: 1 positiveWeek of 2023-09-01: 1 positiveWeek of 2023-10-01: 1 positiveWeek of 2023-11-01: 2 positiveWeek of 2023-11-01: 1 negativeWeek of 2023-12-01: 2 positiveWeek of 2024-01-01: 3 positiveWeek of 2024-02-01: 1 positiveWeek of 2024-03-01: 1 positiveWeek of 2024-05-01: 3 positiveWeek of 2024-06-01: 2 positiveWeek of 2024-07-01: 1 negativeWeek of 2024-08-01: 2 positiveWeek of 2024-10-01: 1 positiveWeek of 2024-12-01: 2 positiveWeek of 2025-02-01: 1 positiveWeek of 2025-04-01: 1 positiveWeek of 2025-04-01: 1 negativeWeek of 2025-06-01: 1 negativeWeek of 2025-07-01: 1 positiveWeek of 2025-07-01: 1 negativeWeek of 2025-08-01: 2 positiveWeek of 2025-09-01: 2 positiveWeek of 2025-12-01: 1 positiveWeek of 2026-03-01: 2 positiveWeek of 2026-04-01: 2 positiveWeek of 2026-06-01: 1 positiveWeek of 2026-06-01: 1 negativeWeek of 2026-07-01: 1 positive
Weekly review counts (Steam review histogram). Positive above the line, negative below.

Players online

102026-09-15 00:00 — 1 players2026-09-16 08:00 — 0 players2026-09-17 16:00 — 1 players2026-09-18 23:00 — 1 players2026-09-20 07:00 — 1 players2026-09-21 15:00 — 1 players2026-09-22 22:00 — 1 players2026-09-24 06:00 — 0 players2026-09-25 13:00 — 0 players2026-09-26 21:00 — 0 players2026-09-28 04:00 — 0 players2026-09-29 12:00 — 0 players2026-09-30 19:00 — 0 players2026-10-02 03:00 — 0 players2026-10-03 10:00 — 0 players2026-10-04 18:00 — 0 players2026-10-06 02:00 — 0 players2026-10-07 09:00 — 0 players2026-10-08 17:00 — 0 players2026-10-10 00:00 — 0 players2026-10-11 08:00 — 0 players2026-10-12 16:00 — 0 players2026-10-13 23:00 — 0 players2026-10-14 15:00 — 0 players
Concurrent players, hourly average, last 30 days (census samples).

Price history

$0.99$0.002017-12-082024-02-112017-12-08 — best price $0.002020-01-25 — best price $0.792020-01-27 — best price $0.992020-03-27 — best price $0.792020-03-30 — best price $0.992020-06-25 — best price $0.792020-07-09 — best price $0.992020-08-24 — best price $0.792020-08-31 — best price $0.992020-10-29 — best price $0.792020-11-02 — best price $0.992020-11-25 — best price $0.792020-12-01 — best price $0.992020-12-22 — best price $0.792021-01-05 — best price $0.992021-02-12 — best price $0.792021-02-15 — best price $0.992024-02-11 — best price $0.00
Lowest recorded price across tracked stores, per day (census snapshots).

Completion

4
achievements tracked
32.2%
earned "Easy 60""
8.6%
median achievement earned by

Global achievement rates from Steam.

Details

WindowsFull controller supportSingle-playerSteam AchievementsFull controller supportCustom Volume ControlsSteam CloudFamily Sharing

1 supported languages: English

Console footprint

PlatformPlayers trackedCompletionTrophies/achievements
Steam (Steam)1,56640%4

Players tracked by Exophase (achievement/trophy trackers) — a sample of the player base, not total sales.

Player tags

2DIndieMusicActionArcadeCasualRhythmAbstractDifficultController

Census log

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

Players also track

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Similarity via IGDB.

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