Single-player games like Gloom - System Breach
Below are 8 single-player Steam games similar to Gloom - System Breach, 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 Gloom - System Breach page.
Ranked picks
- 1

Fool's Paradise
Single-player alternative to Gloom - System Breach — playable solo, no multiplayer required. Shares Indie and Adventure with Gloom - System Breach.
He's alone and keeps in a fool's paradise. Help Jack to open his eyes by getting through his dark adventure to the truth. Solve puzzles, explore Jack's memories and enjoy the ambient soundtrack.
- 2

Junkster
Single-player alternative to Gloom - System Breach — playable solo, no multiplayer required. Shares Action and Indie with Gloom - System Breach.
Junkster is a 3D action platformer with an awesome building mechanic. Plucky little construction bot, UM-13 (or Um for short), has crash-landed on a dangerous junkyard planet. Armed only with his trusty robo-wrench, Um must repair his ship and recover his lost cargo of precious human artifacts.
- 3

Perspective Protocol
Single-player alternative to Gloom - System Breach — playable solo, no multiplayer required. Shares Action and Adventure with Gloom - System Breach.
Perspective Protocol is a first-person puzzle game where you manipulate perspective to solve puzzles. Switch between 2D and 3D to overcome obstacles and escape the facility of the evil Dr. Gamblebert.
- 4

A-RED Walking Robot
Single-player alternative to Gloom - System Breach — playable solo, no multiplayer required. Shares Action and Indie with Gloom - System Breach.
A-RED Walking Robot is a physics based toy robot simulator where you pilot tiny A-RED, a small clockwork operated robot that needs to overcome the trials it’s creator set in a workshop. A miniature nerve-wrecking/patience-proving journey where you are granted to fall… a lot.
- 5

Hypogea
Single-player alternative to Gloom - System Breach — playable solo, no multiplayer required. Shares Indie and Adventure with Gloom - System Breach.
Escape from a mysterious underground megastructure in this short atmospheric 3d-platformer.
- 6

MotionRec
Single-player alternative to Gloom - System Breach — playable solo, no multiplayer required. Shares Action and Indie with Gloom - System Breach.
MotionRec is a recording puzzle action game where you progress through stages by recording and playing back your own movements.
- 7

2Person
Single-player alternative to Gloom - System Breach — playable solo, no multiplayer required. Shares Action and Indie with Gloom - System Breach.
Dive with your friends into this weird 3D platformer where you see through each other's eyes. In this game you will be able to have a second person's perspective where you'll need communication, coordination and skill to relearn how to control your character and pass the challenges that await you.
- 8

Sheep Sweep
Single-player alternative to Gloom - System Breach — playable solo, no multiplayer required. Shares Action and Indie with Gloom - System Breach.
Sheep gone missing! Use given tools in a fully flammable world, crack puzzles, bypass physics obstacles, compete in minigames and safely recover all the missing sheep in this Local coop/solo adventure.