Rank 01Games like Test Subject
- 11 games
- Updated May 5, 2026
Players who liked Test Subject also play
The closest matches to Test Subject: Half-Life, Black Mesa, Bloody Knuckles Street Boxing, Natural Selection 2, and Sanctum 2. Ranked by imho.run from Steam co-play data, shared tags and reviews.
- Rank 01
Rank 02- $19.99 (Price checked Nov 4)
- Deck Playable
- 2020
Rank 03Why this
Also Boxing and 3D Fighter, like Test Subject.
- $14.99 (Price checked Oct 31)
- Deck Playable
- 2024
The full ranked list: top 24 games like Test Subject
Best match first, as plain text. The same list for AI assistants:
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- Released: 2024
- Developer: Autonomous Tree
- Price: $0.99checked Nov 2
- 50% of 2 reviews
- Genres: Action, Indie
- Platforms: Windows
More games like Test Subject, sliced differently
Plays great on Steam Deck
Valve-Verified or Playable picks from the similar pool — ready to go on Deck out of the box.
Half-Life
Why this: Also Aliens and 1990's, like Test Subject.
About Test Subject
The closest matches to Test Subject: Half-Life, Black Mesa, Bloody Knuckles Street Boxing, Natural Selection 2, and Sanctum 2. Ranked by imho.run from Steam co-play data, shared tags and reviews.
If Test Subject is your kind of game, the closest matches are Half-Life, Black Mesa and Bloody Knuckles Street Boxing — 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.
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.
Is Test Subject worth buying?
Too few reviews to call
A summary of what players say, not a promise you'll like it. Every signal is listed below.
- Only 2 Steam reviews so far, not enough to judge.
- Price: $0.99 (checked Nov 2).
People who play it also play: Half-Life, Black Mesa, Bloody Knuckles Street Boxing
Frequently asked about Test Subject
Can I run it?
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 Half-Life, Black Mesa, Bloody Knuckles Street Boxing.
Who developed Test Subject?
Test Subject was developed by Autonomous Tree.