IMHO.

Games like Project ROSS

If Project ROSS is your kind of game, the closest matches are Puppet Mall: Chapter 1: Lost Friend, Mundaun and What Happened to Lily? — picked from the ranked list below. 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 ROSS: Project ROSS is a horror/puzzle game where you play as Jason who is struggling to overcome the absence of his father. Explore the abandoned testing facility where he was supposedly last located and uncover the mystery of what really happened all those years ago. Just try to keep your head on!

2027IndieAdventureWindowsby StandoffStudios
Project ROSS — Steam game cover

Players who liked Project ROSS also play

Steam players who put hours into Project ROSS 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. Puppet Mall: Chapter 1: Lost Friend

    WHY THIS

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

    Explore the abandoned Puppet Mall, solve puzzles, and uncover the secrets of its dark past. As John, confront the mall's mysteries and discover what really happened there while investigating the story of Mike and Chris. But be careful... You are not alone.

    ActionIndieAdventureSteam ↗
  2. Mundaun

    WHY THIS

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

    Mundaun is a lovingly hand-penciled horror tale set in a dark, secluded valley of The Alps. Explore various areas full of secrets to discover, survive hostile encounters, drive vehicles, fill your inventory, and solve a variety of handcrafted puzzles.

    2021ActionIndieAdventure19.99 USDDeck VerifiedSteam ↗
  3. What Happened to Lily?

    WHY THIS

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

    What Happened to Lily? Is a real-time first-person horror game. Discover the secrets and spooky truths behind the mysterious event at Miller Farm.

    2025IndieAdventureCasual3.99 USDSteam ↗
  4. Everything Is For Humanity

    WHY THIS

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

    Everything is for Humanity is a story-driven, exploration and puzzle-solving based science fiction horror game which sets in a massive science facility in 2020. You will discover tons of things and find out about the blood-chilling truths with its first-person experience.

    2022ActionIndieAdventure14.99 USDSteam ↗
  5. Dark Pals: The 1st Floor

    WHY THIS

    Ranked #5 for Project ROSS fans by collaborative filtering across millions of Steam libraries. Shares Adventure with Project ROSS.

    In this singleplayer mascot horror game you're trapped in an abandoned children’s asylum. Solve twisted puzzles with your Ink Blaster, evade its disturbing mascots, and uncover secrets you had long forgotten about. Do you remember?

    2026Adventure5.69 USDDeck PlayableSteam ↗
  6. Amanda the Adventurer 3

    WHY THIS

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

    In the thrilling conclusion of the Amanda the Adventurer trilogy, follow Riley as they uncover the ultimate secrets behind Amanda, Hameln, and mysteries that have plagued Kensdale for decades.

    2025IndieAdventure9.99 USDDeck VerifiedSteam ↗
  7. Filthy us 2

    WHY THIS

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

    千禧年初西北某地,一起恶性杀人事件轰动一时,行凶者临死前紧紧握着半张佛脸,他强烈的怨念引起了“无者”的注意。随着探究的深入,竟又牵扯出十年前另一起纵火灭门案!相同的一尊佛像,背后暗藏的究竟是天灾还是人祸。在那片由怨念产生的怨秽地之中,种种诡异可怖的表象之下,深埋着未知的秘密。

    2023IndieAdventureRPG8.99 USDSteam ↗
  8. Black Sheep

    WHY THIS

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

    Black Sheep" is a 2D story-driven adventure game, you will play a high school student who explores the flooded school ruins, trace the shadow of the past, and unveil the evil those buried in the bottom of the river to see the light of day.

    2022IndieAdventure11.99 USDDeck PlayableSteam ↗

Free alternatives

Free-to-play games that recommended players of this title also tend to enjoy.

  1. Doki Doki Literature Club!

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Project ROSS.

    The Literature Club is full of cute girls! Will you write the way into their heart? This game is not suitable for children or those who are easily disturbed.

    2017IndieFree To PlayCasualFreeDeck PlayableSteam ↗
  2. Life is Strange - Episode 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Adventure with Project ROSS.

    Episode 1 now FREE! Life is Strange is an award-winning and critically acclaimed episodic adventure game that allows the player to rewind time and affect the past, present and future.

    2015ActionAdventureFreeDeck PlayableSteam ↗
  3. Helltaker

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Project ROSS.

    Helltaker is a short game about sharply dressed demon girls.

    2020IndieAdventureFree To PlayFreeDeck PlayableSteam ↗
  4. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Project ROSS.

    Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!

    2018ActionIndieFree To PlayFreeSteam ↗
  5. Bongo Cat

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Project ROSS.

    Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?

    2025IndieSimulationMassively MultiplayerFreeDeck PlayableSteam ↗
  6. ENA: Dream BBQ

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Project ROSS.

    Experience surreal environments and inexplicable characters as ENA in a new wild world.

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  7. The Murder of Sonic the Hedgehog

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie with Project ROSS.

    Sonic the Hedgehog...was murdered!? Get to the bottom of the mystery in this brand-new adventure!

    2023IndieSimulationFree To PlayFreeDeck PlayableSteam ↗
  8. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Indie and Adventure with Project ROSS.

    Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.

    2024ActionIndieAdventureFreeDeck PlayableSteam ↗

Frequently asked about Project ROSS

What games are most similar to Project ROSS?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Project ROSS are Puppet Mall: Chapter 1: Lost Friend, Mundaun, What Happened to Lily?.
Who developed Project ROSS?
Project ROSS was developed by StandoffStudios.

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 ROSS.

For library-aware picks tuned to your specific taste, sign in with Steam on the home page.

16 Games Like Project ROSS — Ranked for 2026 · imho.run