Single-player games like The Square Key
Below are 15 single-player Steam games similar to The Square Key, 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 The Square Key page.
Ranked picks
- 1

Spinning_Kid
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
A rabbit in a capsule capable of rotating the world!
- 2

ProjectTeo
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
ProjectTeo is a platformer with moving between dangerous saws and collecting keys.
- 3

Gravity_Kid
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
A rabbit on a rocket that can change gravity!
- 4

Jad
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Adventure with The Square Key.
JAD is an atmospheric jumping and puzzle platformer.
- 5

Moi Mei
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
The fate of his brother in danger, May is going to be a dangerous journey.
- 6

Green Marquis
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
Green Marquis can change gravity Use the geometry of the level to solve puzzles.
- 7

PP
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
This is a "butt" as the protagonist of the breakthrough game Players will take the role of a pink ass in a hurry to go to the toilet. Dodge all kinds of fast food attacks on the way, break through the obstacles and finally reach the toilet!
- 8

Mekabolt
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
Use your trusty Mekabolt device to manipulate robots, solve a variety of puzzling levels and obtain batteries to fix the robots!
- 9

BlackEye
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
BlackEye is an adventure game, and its main character is the inhabitant of the world of Koyte. This mysterious world is divided into two - upper and lower ones. No one inhabitant of the upper world would voluntarily go down to the lower world. However the main character has to reach the bottom!
- 10

Get Achievements for Achievements
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
The main goal of this game is to get achievements.
- 11

Cyberoque
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
The game takes place in 2215. Suddenly terrible news has come from the outskirts of the solar system: our civilization was attacked by the alien armies. A terrible war begins, humanity is surrounded, enemy space ships press the earth's army.
- 12

Halloween Pumpkin Story
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
Evil spirits on the Day of All Saints give the pumpkin power and send into the otherworldly dark world of nightmare and horror, and what will happen to the pumpkin you will be able to find yourself in the world of the game!
- 13

Super Jet Juck
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
Super Jet Juck is a dynamic puzzle and adventure game. Join the soldiers Juck and Tom!
- 14

CRYEP
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
CRYEP is a hardcore two-dimensional action platformer that combines the genre of "rogue" and the mechanics of Contra. Actions take place in a parallel universe, year 3318. Go on an expedition and fight with alien enemies.
- 15

SAMS
Single-player alternative to The Square Key — playable solo, no multiplayer required. Shares Action and Indie with The Square Key.
Classic shooter with traveling to various exotic planets.