IMHO.

Games like Project Rhombus

If Project Rhombus is your kind of game, the closest matches are SOMOS, Soundodger+ and Super Hexagon — picked from the ranked list below. Reviewers single out its compulsive replayability, challenging and intense. Each pick is ranked by what players of this game also play, shared genres and tags, and review-mined similarity — not a generic popularity list.

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About Project Rhombus: 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.

2017ActionIndieFree To PlayCasualFree to playDeck VerifiedWindowsby SEROSOO
Project Rhombus — Steam game cover
Players highlight
Compulsive replayabilityDefend arrows while keeping rhythmResponsive controls and instant bootChallengingIntenseStressful

Players who liked Project Rhombus also play

Steam players who put hours into Project Rhombus also tend to own these titles — a signal called collaborative filtering. imho.run cross-references millions of library ownership patterns to surface games whose real audiences overlap, regardless of whether their genre tags match.

  1. SOMOS

    WHY THIS

    Top pick for Project Rhombus fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Project Rhombus.

    SOMOS is an action-arcade game with minimalist visuals, where movement is key to solving procedurally generated, living puzzles

    2018ActionIndieCasual7.99 USDSteam ↗
  2. Soundodger+

    WHY THIS

    Shares a challenging mood with Project Rhombus.

    Second-strongest match for Project Rhombus fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Project Rhombus.

    Dodge the music and dance through a mesmerizing ballet of choreographed bullets, each synced to music from over a dozen international artists. Push your creativity and skills with the fully-featured Level Editor and never run out of things to dodge.

    2013ActionIndieCasual7.99 USDDeck PlayableSteam ↗
  3. Super Hexagon

    WHY THIS

    Shares high score chasing and a challenging mood with Project Rhombus.

    Third-strongest match for Project Rhombus fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Project Rhombus.

    Super Hexagon is a minimal action game by Terry Cavanagh, with music by Chipzel.

    2012ActionIndie2.99 USDDeck VerifiedSteam ↗
  4. 140

    WHY THIS

    Shares a challenging mood with Project Rhombus.

    Ranked #4 for Project Rhombus fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Project Rhombus.

    140 is a challenging minimalistic platformer with abstract colorful graphics. Rhythmic awareness is required to overcome obstacles controlled by an energetic, yet melancholic electronic soundtrack.

    2013ActionIndie4.99 USDDeck VerifiedSteam ↗
  5. Beatblock

    WHY THIS

    Shares an intense mood with Project Rhombus.

    Ranked #5 for Project Rhombus fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Project Rhombus.

    THE BEAT REVOLVES AROUND YOU in Beatblock, the headspinning rhythm-action game! Move your paddle and block to the beat in simple yet deviously bombastic levels, each complete with their own unique theming and visuals.

    2025ActionIndieSimulation14.99 USDDeck PlayableSteam ↗
  6. SATANIC PANIC 666

    WHY THIS

    Ranked #6 for Project Rhombus fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Project Rhombus.

    Descend into hell and destroy the cursed tapes with occult music known as †HEAVY METAL† to save our children's souls. On your way you will face Satan himself.

    2021ActionIndieCasual4.99 USDSteam ↗
  7. Spin Rhythm XD

    WHY THIS

    Shares an intense mood with Project Rhombus.

    Ranked #7 for Project Rhombus fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Project Rhombus.

    Enter the Rhythm Dimension. A homage to classic arcade rhythm games (Guitar Hero, DDR), with a modern aesthetic and soundtrack. Match colours and beats, spin, tap, flick and flow through the juiciest beats in the universe. Supports multiple control styles including MIDI DJ gear on Steam!

    2023ActionIndieCasual19.99 USDDeck VerifiedSteam ↗
  8. NERVE

    WHY THIS

    Shares an intense mood with Project Rhombus.

    Ranked #8 for Project Rhombus fans by collaborative filtering across millions of Steam libraries. Shares Action and Indie with Project Rhombus.

    Hurtle through beautiful unforgiving worlds, where every frame is enthralling, every moment is exhilarating, every death is deserved, and every success is earned. RACE | DODGE | DIE | REPEAT

    2021ActionIndieRacing9.99 USDSteam ↗

Reviewers mention these as similar to Project Rhombus

Surfaced from review text: when other players write 'if you liked X, try Y', we catch the name and resolve it back to a Steam game.

  1. Undertale

    WHY THIS

    Reviewers of Project Rhombus cross-mention this title as a similar play. Shares Indie with Project Rhombus.

    UNDERTALE! The RPG game where you don't have to destroy anyone.

    2015IndieRPG9.99 USDDeck PlayableSteam ↗
  2. Soundodger+

    WHY THIS

    Shares a challenging mood with Project Rhombus.

    Reviewers of Project Rhombus cross-mention this title as a similar play. Shares Action and Indie with Project Rhombus.

    Dodge the music and dance through a mesmerizing ballet of choreographed bullets, each synced to music from over a dozen international artists. Push your creativity and skills with the fully-featured Level Editor and never run out of things to dodge.

    2013ActionIndieCasual7.99 USDDeck PlayableSteam ↗
  3. Geometry Dash

    WHY THIS

    Shares an intense mood with Project Rhombus.

    Reviewers of Project Rhombus cross-mention this title as a similar play. Shares Action and Indie with Project Rhombus.

    Jump and fly your way through danger in this rhythm-based action platformer!

    2014ActionIndie4.99 USDDeck PlayableSteam ↗
  4. Soundodger 2

    WHY THIS

    Shares a challenging mood with Project Rhombus.

    Reviewers of Project Rhombus cross-mention this title as a similar play. Shares Action and Indie with Project Rhombus.

    Dodge the music and weave through an endless ballet of bullets in an all-new collection of hand-crafted levels set to the music of an award-winning cast of international musicians. Turn any song into an amazing experience with the robust Level Editor and never run out of things to dodge.

    2023ActionIndieCasual19.99 USDDeck PlayableSteam ↗

Plays great on Steam Deck

Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.

  1. Super Hexagon

    WHY THIS

    Shares high score chasing and a challenging mood with Project Rhombus.

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Project Rhombus.

    Super Hexagon is a minimal action game by Terry Cavanagh, with music by Chipzel.

    2012ActionIndie2.99 USDDeck VerifiedSteam ↗
  2. 140

    WHY THIS

    Shares a challenging mood with Project Rhombus.

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Project Rhombus.

    140 is a challenging minimalistic platformer with abstract colorful graphics. Rhythmic awareness is required to overcome obstacles controlled by an energetic, yet melancholic electronic soundtrack.

    2013ActionIndie4.99 USDDeck VerifiedSteam ↗
  3. Spin Rhythm XD

    WHY THIS

    Shares an intense mood with Project Rhombus.

    Deck Verified — runs on Steam Deck out of the box. Shares Action and Indie with Project Rhombus.

    Enter the Rhythm Dimension. A homage to classic arcade rhythm games (Guitar Hero, DDR), with a modern aesthetic and soundtrack. Match colours and beats, spin, tap, flick and flow through the juiciest beats in the universe. Supports multiple control styles including MIDI DJ gear on Steam!

    2023ActionIndieCasual19.99 USDDeck VerifiedSteam ↗

Frequently asked about Project Rhombus

Is Project Rhombus verified for Steam Deck?
Yes — Project Rhombus is Steam Deck Verified, meaning Valve has confirmed it runs well on the Deck with full controller, text legibility, and default configuration support.
Is Project Rhombus free to play?
Yes — Project Rhombus is a free-to-play title on Steam. You can install and play it without buying anything, though some games include optional in-app purchases.
What games are most similar to Project Rhombus?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Project Rhombus are SOMOS, Soundodger+, Super Hexagon.
Who developed Project Rhombus?
Project Rhombus was developed by SEROSOO and published by PsychoFlux Entertainment.

imho.run ranks Steam game alternatives using a mix of collaborative filtering (ALS / iALS / EASE / LightGCN), content scoring over genres, categories, Steam tags, developers, and publishers, plus AI-extracted vibes mined from review text. The page above is generated in seed mode anchored on Project Rhombus.

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15 Games Like Project Rhombus — Ranked for 2026 · imho.run