36 similar games
Games like Test Subject Green
Browser games that play like Test Subject Green, closest match first. Lime means it runs right here.

The second chapter in the test subject series with new developments afoot! The games below have the most in common with it — puzzle platformer, platform, science fiction — ranked by how closely they match, favouring the ones you can play right here in your browser.
Top picks
The 10 closest to Test Subject Green
- Test Subject BluePlays on nitrome.com
Perform a series of tests with warping portals for the watching scientist. In common: puzzle platformer, science fiction, platform.
- Test Subject CompletePlays on nitrome.com
The concluding part to the action puzzle platforming Test Subject series. In common: science fiction, platform.
- Save The DevPlays on prismagamelab.itch.io
In a game from the 90s, you play as Henry, the egocentric creator of the game, who got stuck inside his own creation. In common: puzzle platformer, science fiction, platform.
- Deliver to When You CamePlays on justcamh.itch.io
Deliver the meal. In common: puzzle platformer, science fiction, platform.
- Moss MossPlays on noelcody.itch.io
Play Moss Moss to moss the world and find secrets. In common: puzzle platformer, platform.
- Portal: The Flash VersionPlays here
A free flash game inspired by Valve's Portal. In common: puzzle platformer, science fiction.
- Gravity SnakePlays here
Gravity Snake is a 2D puzzle game that follows the adventures of a cute snake able to fold its body to squeeze through hard-to-reach areas. In common: puzzle platformer, platform.
- Moonleap 2600Plays here
A fan-made demake of the game Moonleap, imagining what it would look like on the Atari 2600. In common: puzzle platformer, platform.
- PyrotoadPlays here
Pyrotoad is an action platformer where you leap, shoot, and puzzle your way through 35 challenging stages. In common: puzzle platformer, platform.
- Rota: Bend GravityPlays here
Rota is a gravity bending puzzle platforming adventure! In common: puzzle platformer, platform.
All matches
Every game like Test Subject Green
PlayableTest Subject Blue
Puzzle Platformer · 2011
PlayableTest Subject Complete
Science fiction · 2013
PlayableAlphaSave The Dev
Retro · 2026
PlayableDeliver to When You Came
Physics · 2023
PlayableMoss Moss
Metroidvania · 2026
PlayablePortal: The Flash Version
Bloody · 2007
PlayableGravity Snake
Casual · 2021
PlayableMoonleap 2600
Demake · 2026
PlayablePyrotoad
Controller Recommendation · 2025
PlayableRota: Bend Gravity
Casual · 2022

Unstable Engineer
Puzzle Platformer · 2019
PlayableDeepest Sword
Sword · 2021
PlayableA Grave Mistake
Ghosts · 2024
PlayableBulbo's Belief System
Puzzle Platformer · 2025
PlayableJelly Escape
Puzzle Platformer · 2012
PlayableLoop Frogs
Frog · 2020
PlayableMink
Cats · 2025
PlayableMirror Wizard
Puzzle Platformer · 2023
PlayableRestless Wing Syndrome
Difficult · 2020
PlayableSnakeBird NES
Casual · 2021
PlayableSnekburd
Casual · 2025
PlayableSulka
2D · 2021
PlayableWilt
Game Jam · 2024
PlayableMoney Movers 2
Local Co Op · 2015
PlayableOrul
Puzzle Platformer · 2019
PlayableGunbrick
Science fiction · 2014
PlayableRustyard
Post Apocalyptic · 2009
PlayableTower of Heaven
Retro · 2010
PlayableBlink
2D · 2022
PlayableColor Theory
Pixel Graphics · 2010
PlayableFade
2D · 2025
PlayableOne More Treasure
Retro · 2025
PlayablePrimary
Newgrounds · 2010
PlayableVacuous Sugar Quest
2 D Platformer · 2025
PlayableBetaWarpswap
2D · 2020
PlayableBetaWhiskers in the Dark
Physics · 2023