Project Rhombus

Project Rhombus

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

PC
Very Positive88% · 129
This game is free to play. Get it on Steam →

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

What Steam players say

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

Recommended Mar 4, 2026
One of my favorite rhythm games so far!
1 found this helpful
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.
Recommended Apr 16, 2026
I just got a nonstop non streak in expert from the first note up to 21 seconds in. I hit it, and then immediately failed at the second note after the break. 10/10
Recommended Jan 29, 2026
I really enjoy this game, its a satisfying challenge with great music, I wouldn't call it a rhythm game its more like super hexagon where the music is there more to improve the feel. If you like super hexagon you would probably like this too.
Recommended Dec 27, 2025
A nice, minimalistic reflex-based game with simple inputs that will make you remember how long a single minute can actually be. Difficulty levels are well balanced. Can make for a lot of fun for less than a euro.

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