Free games like Thermo Sudoku
Below are 8 free-to-play Steam games similar to Thermo Sudoku, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Thermo Sudoku page.
Ranked picks
- 1
Jigsaw Puzzle Dreams
Free-to-play alternative to Thermo Sudoku — no purchase or trial window. Shares Indie and Casual with Thermo Sudoku.
Beautiful Multiplayer Jigsaw Puzzle game where you can design the room you play in!
- 2
Sprout
Free-to-play alternative to Thermo Sudoku — no purchase or trial window. Shares Strategy and Indie with Thermo Sudoku.
Embark on a casual, botanical-puzzle-adventure. Make friends, learn new skills, solve puzzles, and become the mighty oak that you were always meant to be.
- 3
Learn to Fly 3
Free-to-play alternative to Thermo Sudoku — no purchase or trial window. Shares Strategy and Indie with Thermo Sudoku.
Build your spaceship from scratch, earn funds and invest them into building a bigger, better spaceship as you try and fly your way up to space!
- 4
Transformice
Free-to-play alternative to Thermo Sudoku — no purchase or trial window. Shares Indie with Thermo Sudoku.
Transformice is an MMO platformer about dozens of mice running to bring back the cheese! Will the almighty Shaman help you or just ruin everything? Millions of levels, hectic physics, skill trees, and more importantly... hats!
- 5
Puzzle Together Multiplayer Jigsaw Puzzles
Free-to-play alternative to Thermo Sudoku — no purchase or trial window. Shares Indie and Casual with Thermo Sudoku.
Multiplayer jigsaw puzzles with voice chat! Play on your own or with friends, and feel like you're all sitting around the same table. Millions of puzzle images, upload your own, or create any puzzle you can imagine just by describing it!
- 6
BEEP
Free-to-play alternative to Thermo Sudoku — no purchase or trial window. Shares Indie with Thermo Sudoku.
A combination of platforming with a gravity gun, BEEP is an amazing physics-platformer. Despite its friendly art style, this is a hardcore platformer in the truest sense.
- 7
In Sink: A Co-Op Escape Prologue
Free-to-play alternative to Thermo Sudoku — no purchase or trial window. Shares Indie and Casual with Thermo Sudoku.
Play an early version of the first level for free! Work together to solve the puzzles and escape a desert island in this multiplayer co-op adventure. Success requires more than just you and your partner thinking alike - you'll have to communicate and stay In Sink to overcome the challenges ahead.
- 8
Picross Touch
Free-to-play alternative to Thermo Sudoku — no purchase or trial window. Shares Strategy and Indie with Thermo Sudoku.
Find the hidden image in this fun and addictive logic puzzle game. All puzzles have unique solutions, ensuring 100% logically solvable puzzle grids.