Project Rhombus

Project Rhombus

SEROSOO · December 8, 2017 · Rhythm, Difficult, Arcade, 2D, Controller

Project Rhombus is free to keep right now — claim it before the giveaway ends.

PC
Very Positive93% · 1,400
Best price 100 Free right now
$0.00
⭐ lowest tracked
Steam Buy at Steam

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Where to buy Project Rhombus — official stores

Steam
Steam
Standard Edition · Steam
$0.00
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Project Rhombus price by region

Project Rhombus costs $0.00 in the United States, €0.00 in Europe (EUR), £0.00 in the United Kingdom, zł0.00 in Poland, CA$0.00 in Canada, A$0.00 in Australia, NZ$0.00 in New Zealand, $0.00 in Georgia (USD) and R$0.00 in Brazil right now.

Cheapest Project Rhombus offer in each region, in local currency
RegionBest priceOfficial storeKey shopStores
United Statesyour region $0.00 $0.00 — 1
Europe (EUR) €0.00 €0.00 — 1
United Kingdom £0.00 £0.00 — 1
Poland zł0.00 zł0.00 — 1
Canada CA$0.00 CA$0.00 — 1
Australia A$0.00 A$0.00 — 1
New Zealand NZ$0.00 NZ$0.00 — 1
Georgia (USD) $0.00 $0.00 — 1
Brazil R$0.00 R$0.00 — 1

Each row is a real price from that region's own stores, not a currency conversion, so the figures are not directly comparable. Switch regions in the header to shop the one you buy in.

Screenshots

About Project Rhombus

✦ AI summary

Block incoming arrows to the beat in this minimalist rhythm-action game set to pulsing electronic music. Deceptively simple controls hide devilish difficulty as you test your reflexes and timing against endlessly challenging patterns.

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.

Features

  • Music with sensual beat
  • Minimalistic graphics
  • Easy to learn, quite hard to master
  • 100% free!

in honor of Toby Fox

Project Rhombus — game info

Platforms
Windows
Steam Deck
Verified
Player modes
Single-player
Controller
Full controller support
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Sep 1, 2026
Literally has no rhythm aspect since not a single input syncs with the music and to make it even worse it's fully rng... Only redeeming thing is they used Hinkik's music. Also it can be kinda fun but still evil game.
1 found this helpful
Recommended Aug 23, 2026
Project Rhombus is a very simple rhythm game, but it is one of those simple ideas that gets much harder once I actually start playing. The whole game is about keeping a small rhombus aligned with arrows coming towards me and blocking them in time with the music. That is basically the entire concept, but the timing gets much more demanding as I move through the difficulty levels. I like games that can explain themselves in a few seconds, and Project Rhombus definitely does that. The controls are easy to pick up because I am mainly using the arrow keys to move the rhombus into the correct position. The challenge comes from having to react quickly while also keeping track of the rhythm. The normal difficulty is manageable once I get used to the timing, but the harder modes push my reactions much more. There are four difficulty levels, including Easy, Normal, Hard and Expert, so I have a clear reason to keep practising once the basic controls stop being a challenge. The music is probably the strongest part of the experience for me. The electronic soundtrack gives the game the fast pace it needs, and the arrows coming towards me fit naturally with the beat. I also like the very minima…
1 found this helpful
Recommended Jul 21, 2026
that one undyne attack 2
1 found this helpful
Recommended Jul 22, 2026
good reflex
Recommended Jun 30, 2026
If you like the rush of going from a new high score to not being able to make it literally 8 seconds your next 14 rounds probably, then this game will feel like something truly special. Anyone trying to tell you the key is to "relax," and, "stay calm," or even, "stop being such a fcking b!tch it's only a game you psycho" has ulterior motives and [u]does not[/u] want you to succeed. They are out to get you and you need to assume they are maliciously lying and trying to sabotage you. Your only hope is to have several sources of audio / visual distractions in the vicinity, as many as possible. The goal should be to create a paranoid state of stress-induced panic and heightened awareness. I've observed a remarkable correlation between how loud, angry, and incoherent my cursing is and how locked in my perception and reaction times become. [h3]Tips[/h3] [b]• Keep the music as loud as possible • • EVEN MORE flashing images • • 1 - 2 lights aggressively strobing on either side of your screen, out of sync with each other and the game's own strobing • • Dextroamphetamine 20-60 mg ( think '[i]Limitless[/i]-maxxing' but be safe and most importantly [u]know your limit[/u]! No, Vyvanse…
Recommended Jun 5, 2026
Great game. Took some time to get it down. Practice makes perfect.

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