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.

0
playing now
93%
positive of 1.4k reviews
Very Positive
steam rating
100,000–200,000
owners (SteamSpy est.)
gold
deck/linux tier (ProtonDB)
$0.99
steam price (US)

0 players in-game as of 2026-08-30 05:00 UTC (census sample)

Health check

Insufficient data
  • · Not enough review history collected yet to judge health.
  • · Top 30% of 10,791 Action games in the census by review count.
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

Players online

202026-08-11 18:00 — 0 players2026-08-12 10:00 — 0 players2026-08-13 02:00 — 0 players2026-08-13 18:00 — 1 players2026-08-14 09:00 — 0 players2026-08-15 01:00 — 0 players2026-08-15 17:00 — 1 players2026-08-16 09:00 — 0 players2026-08-17 01:00 — 0 players2026-08-17 17:00 — 0 players2026-08-18 09:00 — 0 players2026-08-19 00:00 — 0 players2026-08-19 16:00 — 0 players2026-08-20 08:00 — 0 players2026-08-21 00:00 — 0 players2026-08-21 15:00 — 0 players2026-08-22 07:00 — 0 players2026-08-22 23:00 — 0 players2026-08-23 15:00 — 2 players2026-08-24 06:00 — 0 players2026-08-24 22:00 — 0 players2026-08-25 14:00 — 1 players2026-08-26 06:00 — 0 players2026-08-26 23:00 — 0 players2026-08-27 13:00 — 0 players2026-08-28 05:00 — 1 players2026-08-28 21:00 — 0 players2026-08-29 13:00 — 0 players2026-08-30 05:00 — 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

Don't Knock TwiceToby: The Secret MineDude SimulatorEternity: The Last UnicornApsulov: End of GodsTorchlight III

Similarity via IGDB.

Official site ↗