IMHO.

Games like Test Subject

If Test Subject is your kind of game, the closest matches are Kokoro Ultimate, VR Immortal Fight and EM — 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 Test Subject: An action-packed single-player FPS where you fight your way off an alien ship using fists and power-ups. Test your strength, wits, and resilience to survive and escape.

2024ActionIndie0.99 USDWindowsby Autonomous Tree
Test Subject — Steam game cover

Players who liked Test Subject also play

Steam players who put hours into Test Subject 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. Kokoro Ultimate

    WHY THIS

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

    Defeat Ryzon and tame your inner beast in this hybrid 3D Fighter. Transform into a secondary fighter or activate a unique weapon to extend combos.

    2022ActionIndieAdventure7.99 USDSteam ↗
  2. VR Immortal Fight

    WHY THIS

    Second-strongest match for Test Subject fans by collaborative filtering across millions of Steam libraries. Shares Action with Test Subject.

    Virtual Reality Fighting game with Insane 3d graphics and Fighting actions

    2021Action4.99 USDSteam ↗
  3. EM

    WHY THIS

    Third-strongest match for Test Subject fans by collaborative filtering across millions of Steam libraries. Shares Action with Test Subject.

    EM is a fast-paced, hard hitting 3D fighter featuring Electro-Magnetic combat. To win the war against the machines, you as an elite fighter will go fist to fist on a mission to annihilate them all!

    2022ActionAdventure0.99 USDSteam ↗
  4. Dragon Fist: VR Kung Fu

    WHY THIS

    Ranked #4 for Test Subject fans by collaborative filtering across millions of Steam libraries. Shares Action with Test Subject.

    First-Person VR kung fu fighter with high-fidelity, physics-based combat, and an artistic style that pays homage to the golden era of martial arts films. Play with friends in Co-Op mode, challenge others in PvP battles, or embark on epic single-player adventures.

    2021ActionSports19.99 USDSteam ↗
  5. TheFighters Online

    WHY THIS

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

    Online fighting game

    2022ActionSportsIndieFreeDeck PlayableSteam ↗
  6. The Breakup Arena

    WHY THIS

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

    A Beat 'Em Up game where you confront your exes, blending intense action with deep emotional storytelling. Explore the complexities of relationships and discover inner peace through unique gameplay.

    2024ActionIndieAdventure1.99 USDSteam ↗
  7. Beat The Devil

    WHY THIS

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

    Rocketman demon and his army have kidnapped Terzonators wife. So you need collect weapons destroy army and demon boss to resque your wife

    2022ActionIndie4.99 USDSteam ↗
  8. MINE

    WHY THIS

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

    Oh, I think there's something wrong with the mine Why don't you run away now?

    2024ActionIndieAdventure2.99 USDSteam ↗

Cheaper alternatives

Games in the same vein priced at least 40% below Test Subject at current Steam store prices.

  1. UBERMOSH

    WHY THIS

    Priced ~51% under Test Subject on Steam right now. Shares Action and Indie with Test Subject.

    UBERMOSH is an arcade game about cutting bullets with a sword, in a gun-filled cyberpunk mosh pit.

    2015ActionIndie0.49 USDDeck VerifiedSteam ↗
  2. Miss Neko

    WHY THIS

    Priced ~51% under Test Subject on Steam right now. Shares Action with Test Subject.

    Together the full picture of all the lovely beast ladies with your own hands, play Yakyuken with them, collect their portraits. Hope you have a relaxing and enjoyable game time:)

    2019ActionCasual0.49 USDDeck PlayableSteam ↗
  3. QUICKERFLAK

    WHY THIS

    Priced ~51% under Test Subject on Steam right now. Shares Action and Indie with Test Subject.

    QUICKERFLAK is an experimental fast-paced time-attack top-down combat retro-hardcore minigame, that can be finished in a minute.

    2022ActionIndieAdventure0.49 USDDeck VerifiedSteam ↗
  4. Save Jesus

    WHY THIS

    Priced ~51% under Test Subject on Steam right now. Shares Indie with Test Subject.

    Someone is trying to murder Jesus. Disguised as Caesar with the Roman Empire by his side, an evil impostor from the future has set hundreds of deadly traps. Redirect the traps, kill the Romans and protect Jesus!

    2016IndieCasual0.49 USDDeck PlayableSteam ↗
  5. Barro

    WHY THIS

    Priced ~51% under Test Subject on Steam right now. Shares Indie with Test Subject.

    Choose your little car and race!

    2018IndieCasualRacing0.49 USDDeck VerifiedSteam ↗
  6. Gachi Heroes

    WHY THIS

    Priced ~51% under Test Subject on Steam right now. Shares Action and Indie with Test Subject.

    Gachi Heroes is a game about the dark fantasies. That's amazing an endlass journey in which you will know yourself with your favorite gachimuchi characters. How deep would you go?

    2018ActionIndieAdventure0.49 USDDeck VerifiedSteam ↗
  7. Trip to Vinelands

    WHY THIS

    Priced ~51% under Test Subject on Steam right now. Shares Action and Indie with Test Subject.

    Trip to Vinelands is an arcade retro hardcore maze wanderer minigame.

    2016ActionIndie0.49 USDDeck VerifiedSteam ↗
  8. TTV2

    WHY THIS

    Priced ~51% under Test Subject on Steam right now. Shares Action and Indie with Test Subject.

    TTV2 is an arcade retro hardcore maze wanderer minigame, sequel to Trip to Vinelands.

    2017ActionIndie0.49 USDSteam ↗

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 Test Subject.

    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 Action with Test Subject.

    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. Ultimate Custom Night

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Test Subject.

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

    2018ActionIndieFree To PlayFreeSteam ↗
  4. ENA: Dream BBQ

    WHY THIS

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

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

    2025IndieAdventureFreeDeck VerifiedSteam ↗
  5. Indigo Park: Chapter 1

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action and Indie with Test Subject.

    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 ↗
  6. STRAFTAT

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Test Subject.

    STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.

    2024ActionFreeDeck PlayableSteam ↗
  7. The Looker

    WHY THIS

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

    You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.

    2022IndieFreeDeck PlayableSteam ↗
  8. Counter-Strike:Global Offensive

    WHY THIS

    Free-to-play pick from the same recommendation pool — no purchase to try it. Shares Action with Test Subject.

    Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).

    2012ActionFree To PlayFreeDeck PlayableSteam ↗

Frequently asked about Test Subject

How much does Test Subject cost?
Test Subject is listed on Steam at 0.99 USD (current store price; Steam sales may reduce this temporarily).
What games are most similar to Test Subject?
Based on Steam play patterns and shared genres/tags, the games most often recommended alongside Test Subject are Kokoro Ultimate, VR Immortal Fight, EM.
Who developed Test Subject?
Test Subject was developed by Autonomous Tree.

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 Test Subject.

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