Single-player games like Size Matters
Below are 12 single-player Steam games similar to Size Matters, 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 Size Matters page.
Ranked picks
- 1

Escape the Lab
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Indie and Simulation with Size Matters.
“Escape the Lab” – Virtual Reality experience of an Escape Room that focuses on realistic chemical experiments.
- 2

Magnet Mania 3D
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Indie and Adventure with Size Matters.
Magnet Mania 3D, it's a simulation game for small and big engineers, school children to learn about magnetism and physics.
- 3

Chernobyl: Simulator
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Indie and Simulation with Size Matters.
Chernobyl Simulator puts you in the control room of the most infamous nuclear power plant in history. Step into the shoes of a reactor operator, where every switch, gauge, and decision matters. Experience the pressure, responsibility, and unforgiving complexity of Soviet-era nuclear operations.
- 4

Supermarket Duck Dash
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Action and Indie with Size Matters.
🦆 Hilarious physics-based shopping chaos! Take control of a mischievous duck and cause supermarket mayhem! Knock products off shelves, complete shopping lists for grumpy old folks, and rack up the biggest receipt. 125+ products, wacky physics, and 3 chaotic game modes! How much can you earn?
- 5

Crispy Circuits
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Indie and Adventure with Size Matters.
Discover the world of electronics by fixing your hamster’s RC plane. Build real circuits, solve increasingly challenging engineering puzzles, and learn how electronic devices actually work. This wholesome circuitry sim lets you electrocute your hamster without authorities getting involved.
- 6

Automation - The Car Company Tycoon Game
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Indie and Simulation with Size Matters.
Make your dream cars a reality with Automation’s unparalleled car and engine design tools. Gain a competitive edge through smart engineering and business decisions to help you build an automotive empire. Will you become an industry leader, or just a footnote in automotive history?
- 7

Farming Life
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Indie and Adventure with Size Matters.
Are you tired of corporate life? Create your own farm! Plant vegetables and fruits, harvest crops, employ workers, take care of animals. Buy farm equipment, manage employees and just relax!
- 8

Restaurant Renovator
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Action and Indie with Size Matters.
Become a Restaurant Renovator who knows the recipe for the success and helps failing restaurant to rise from their knees! Create a brand new venue! You can tear down the walls and get rid of the floors, destroy, rebuild, redecorate to make a place of your dreams and get the best reviews!
- 9

Overcooked
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Action and Indie with Size Matters.
Overcooked is a chaotic couch co-op cooking game for one to four players. Working as a team, you and your fellow chefs must prepare, cook and serve up a variety of tasty orders before the baying customers storm out in a huff.
- 10

AtmaSphere
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Action and Indie with Size Matters.
AtmaSphere is roll-a-ball game set in a medieval world which is full of dangerous traps and uncertain paths! Roll all you want, but don't fall off! Collect all diamonds to impress Ballerina, and get Ballard safely to her house!
- 11

AtmaSphere 2
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Action and Indie with Size Matters.
Embark on a frosty medieval journey! Guide your ball through snowy platforms, conquer obstacles, and collect pickups. With stunning graphics and immersive gameplay, brace yourself for a chilling adventure! Roll to victory in this winter realm!
- 12

OneShift
Single-player alternative to Size Matters — playable solo, no multiplayer required. Shares Action and Indie with Size Matters.
OneShift is a puzzle platformer where the player has the ability to freeze/unfreeze time and shift through worlds to collect blue cubes. But only one world can be active at a time. Later in the game, a world rotating mechanic is unveiled, which makes everything more complex!