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

Polly's Puzzle Box
Single-player alternative to InOut — playable solo, no multiplayer required. Shares Indie and Adventure with InOut.
As a small flea, explore a mysterious puzzle box filled with shapes and secrets. Gather strange items with hidden abilities, and unravel a trail of clues as you attempt to escape.
- 2

Leap Year
Single-player alternative to InOut — playable solo, no multiplayer required. Shares Action and Indie with InOut.
Leap Year is a clumsy platformer about knowledge and discovery. Explore a compact, hand drawn world filled with hidden paths. Understand the game’s secrets to reach new areas and collect all the pages of your calendar.
- 3

Derelict Star
Single-player alternative to InOut — playable solo, no multiplayer required. Shares Action and Adventure with InOut.
A precise momentum-based platformer that emphasizes exploration and navigation puzzles. Run and jump your way through a wide variety of obstacles and challenges as you explore an abandoned derelict freighter. Be careful: getting in is often easier than getting out!
- 4

EMUUROM
Single-player alternative to InOut — playable solo, no multiplayer required. Shares Indie and Adventure with InOut.
A creature-scanning metroidvania. Explore an ancient paradise before it's lost forever. Study the EMUUROM creatures, document your findings in the EMUUDEX, and use what you learn to unlock new paths.
- 5

Dungeon Gals
Single-player alternative to InOut — playable solo, no multiplayer required. Shares Action and Indie with InOut.
A small crisis control team has been summoned to help a civilization in the sky escape impending doom! Explore dungeons, solve puzzles, and find lots of treasure to help prepare yourself for incredible challenges!
- 6

Quarion
Single-player alternative to InOut — playable solo, no multiplayer required. Shares Indie and Adventure with InOut.
A short 2D pixel-style metroidvania where you explore, fight bosses, aquire items and abilities and find secrets. Inspired by games such as You Have to Win the Game and VVVVVV.
- 7

BIOMORPH
Single-player alternative to InOut — playable solo, no multiplayer required. Shares Action and Adventure with InOut.
BIOMORPH is a dark metroidvania game where you become the creatures that you kill! Solve ingenious puzzles and navigate a stunning hand-drawn world. Meet quirky characters, rebuild a city, and uncover the secrets of a sprawling, fallen civilization… and of your own mysterious origins.
- 8

Öoo
Single-player alternative to InOut — playable solo, no multiplayer required. Shares Action and Indie with InOut.
A Bomb Caterpillar's Big Adventure! "Öoo" is a charming yet mysterious exploration puzzle platformer where you discover creative ways to use bombs!