Single-player games like Test Subject
Below are 8 single-player Steam games similar to Test Subject, ranked by player overlap. Every pick carries Steam's Single-player category, so multiplayer-only titles or always-online games don't sneak in. imho.run pulls the category data from Steam directly — Single-player here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Test Subject page.
Ranked picks
- 1
Kokoro Ultimate
Single-player alternative to Test Subject — playable solo, no multiplayer required. 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.
- 2
VR Immortal Fight
Single-player alternative to Test Subject — playable solo, no multiplayer required. Shares Action with Test Subject.
Virtual Reality Fighting game with Insane 3d graphics and Fighting actions
- 3
EM
Single-player alternative to Test Subject — playable solo, no multiplayer required. 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!
- 4
Dragon Fist: VR Kung Fu
Single-player alternative to Test Subject — playable solo, no multiplayer required. 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.
- 5
TheFighters Online
Single-player alternative to Test Subject — playable solo, no multiplayer required. Shares Action and Indie with Test Subject.
Online fighting game
- 6
The Breakup Arena
Single-player alternative to Test Subject — playable solo, no multiplayer required. 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.
- 7
Beat The Devil
Single-player alternative to Test Subject — playable solo, no multiplayer required. 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
- 8
MINE
Single-player alternative to Test Subject — playable solo, no multiplayer required. Shares Action and Indie with Test Subject.
Oh, I think there's something wrong with the mine Why don't you run away now?