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

Gem Setter
Single-player alternative to PortalBox — playable solo, no multiplayer required. Shares Strategy and Indie with PortalBox.
i'm gem setter, a block sliding puzzle game about moving ice in an abstract world. solve clever puzzles using ice blocks to change your shape and open new paths, then build your own levels using the built-in level editor.
- 2

Box's Dream
Single-player alternative to PortalBox — playable solo, no multiplayer required. Shares Strategy and Indie with PortalBox.
Box's Dream is an elegant puzzle game where you'll have to push boxes into the correct positions, but it won't be easy, as various challenges such as ice floors, holes, pistons and many others await you in this exciting and unforgettable experience.
- 3

CLONY
Single-player alternative to PortalBox — playable solo, no multiplayer required. Shares Strategy and Indie with PortalBox.
CLONY is a gravity-defying Sokoban-style 2D puzzle game. Players can create clones above their own heads, and all clones move in the same direction. The game is cleared when all yellow buttons are pressed at the same time. Test your own puzzle skills with these minimalistic puzzles.
- 4

Unlock the Block
Single-player alternative to PortalBox — playable solo, no multiplayer required. Shares Indie and Casual with PortalBox.
In unlock the block your objective is to activate a button, but for that you will have to push your way through and destroy blocks. This may seem easy but know one thing your movement is limited.
- 5

Snakeloop
Single-player alternative to PortalBox — playable solo, no multiplayer required. Shares Strategy and Indie with PortalBox.
Snakeloop is a challenging puzzle game based on a simple idea: What if you took classic Snake but inverted the goal and made it so you have to form a loop by eating your own tail.
- 6

Egress: Gravity & Escape
Single-player alternative to PortalBox — playable solo, no multiplayer required. Shares Strategy and Indie with PortalBox.
A box full of blocks and bubbles. One door. Rotate to empty it — in as few turns as possible.
- 7

Roll On Dice
Single-player alternative to PortalBox — playable solo, no multiplayer required. Shares Strategy and Indie with PortalBox.
Roll On Dice is a puzzle game where you have to roll on other dice! Learn your own dice, to determine if your top face number will be superior or equal to the one that you are rolling on, otherwise you will break your own…
- 8

Block Buster Billy
Single-player alternative to PortalBox — playable solo, no multiplayer required. Shares Strategy and Indie with PortalBox.
An alien family had a picnic on Billy's island. They had to leave in a hurry, causing Junior to forget his cubes. Can you help Billy figure out the mind-boggling alien puzzles?