Single-player games like Mariusz: the game
Below are 8 single-player Steam games similar to Mariusz: the game, 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 Mariusz: the game page.
Ranked picks
- 1

Slime Jumper Adventure
Single-player alternative to Mariusz: the game — playable solo, no multiplayer required. Shares Indie and Adventure with Mariusz: the game.
In this classic 2D platformer, make your way through countless traps and obstacles like spikes, lasers, projectiles and even aliens as Mr. Slime, across 5 unique worlds with numerous levels. Reaching the goal at the end of each level is key to progressing to the next stage.
- 2

Before Time Runs Out
Single-player alternative to Mariusz: the game — playable solo, no multiplayer required. Shares Adventure and Casual with Mariusz: the game.
In this momentum based Platformer, make your way through numerous obstacles such as spikes, saws, laser beams, and explosives to reach the goal at the end of each level. Each level has a limited amount of time to complete. So speed is key, or else it's game over.
- 3

Goat's Tale Adventure
Single-player alternative to Mariusz: the game — playable solo, no multiplayer required. Shares Indie and Adventure with Mariusz: the game.
Step into the shoes of the new heroine and pursue the treasures in this exceptionally demanding adventure. Explore lands where only the most resilient players will reach the summit.
- 4

Mekabolt
Single-player alternative to Mariusz: the game — playable solo, no multiplayer required. Shares Indie and Adventure with Mariusz: the game.
Use your trusty Mekabolt device to manipulate robots, solve a variety of puzzling levels and obtain batteries to fix the robots!
- 5

Super Dee
Single-player alternative to Mariusz: the game — playable solo, no multiplayer required. Shares Indie and Adventure with Mariusz: the game.
You play as Dee, a character that looks like a pee-pee in a 2D platformer-climber. He needs your help to reach the top because he fell down from his balcony. It's very challenging, plus there is also an impossible mode.
- 6

Squirrel Jump
Single-player alternative to Mariusz: the game — playable solo, no multiplayer required. Shares Indie and Adventure with Mariusz: the game.
"Squirrel Jump" is a charming platformer game where you guide an agile squirrel through enchanting levels, mastering precise jumps and navigating clever obstacles. Experience vibrant visuals, intuitive controls, and delightful challenges in this immersive platforming adventure.
- 7

Goat's Tale (Classic)
Single-player alternative to Mariusz: the game — playable solo, no multiplayer required. Shares Indie and Adventure with Mariusz: the game.
The treasures hidden on the peaks await the most lively, goat daredevils. The challenge will be difficult and… irritating - only the best and most patient will get to the top.
- 8

Snail Bob 2: Tiny Troubles
Single-player alternative to Mariusz: the game — playable solo, no multiplayer required. Shares Indie and Adventure with Mariusz: the game.
Help Snail Bob avoid the dangers that lie on his path. Snail Bob 2 is a puzzle game for all the ages. It'll make you think and smile.