IMHO.

Free games like Simple Sudoku

Below are 8 free-to-play Steam games similar to Simple 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 Simple Sudoku page.

Ranked picks

  1. 1
    The Lab — Steam game cover

    The Lab

    Free-to-play alternative to Simple Sudoku — no purchase or trial window.

    Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!

    2016Free To PlayFreeFree to playSimilar games →
  2. 2
    Jigsaw Puzzle Dreams — Steam game cover

    Jigsaw Puzzle Dreams

    Free-to-play alternative to Simple Sudoku — no purchase or trial window. Shares Casual with Simple Sudoku.

    Beautiful Multiplayer Jigsaw Puzzle game where you can design the room you play in!

    2021IndieFree To PlayCasualFreeDeck PlayableFree to playSimilar games →
  3. 3
    Sprout — Steam game cover

    Sprout

    Free-to-play alternative to Simple Sudoku — no purchase or trial window. Shares Strategy with Simple 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.

    2018StrategyIndieAdventureFreeDeck VerifiedFree to playSimilar games →
  4. 4
    Dota Underlords — Steam game cover

    Dota Underlords

    Free-to-play alternative to Simple Sudoku — no purchase or trial window. Shares Strategy and Casual with Simple Sudoku.

    Hire a crew and destroy your rivals in this new strategy battler set in the world of Dota. Introducing Season One: Explore White Spire and earn rewards on the Battle Pass. Pick from several different game modes, play on your own or with friends, and take advantage of crossplay on PC and mobile.

    2019StrategyFree To PlayCasualFreeDeck VerifiedFree to playSimilar games →
  5. 5
    KARDS - The WW2 Card Game — Steam game cover

    KARDS - The WW2 Card Game

    Free-to-play alternative to Simple Sudoku — no purchase or trial window. Shares Strategy and Casual with Simple Sudoku.

    KARDS, The World War II Card Game, combines traditional CCG gameplay with innovative mechanics inspired by classic strategy games and real battlefield tactics. Take command and challenge other players in grand-scale warfare on the ground, air, or seas.

    2020StrategyIndieFree To PlayFreeFree to playSimilar games →
  6. 6
    Learn to Fly 3 — Steam game cover

    Learn to Fly 3

    Free-to-play alternative to Simple Sudoku — no purchase or trial window. Shares Strategy with Simple 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!

    2017ActionStrategyIndieFreeDeck PlayableFree to playSimilar games →
  7. 7
    GWENT: The Witcher Card Game — Steam game cover

    GWENT: The Witcher Card Game

    Free-to-play alternative to Simple Sudoku — no purchase or trial window. Shares Strategy with Simple Sudoku.

    Command mighty Witcher-world heroes in epic online PvP card battles!

    2020StrategyRPGFree To PlayFreeFree to playSimilar games →
  8. 8
    Lost Lands: Mahjong — Steam game cover

    Lost Lands: Mahjong

    Free-to-play alternative to Simple Sudoku — no purchase or trial window. Shares Casual with Simple Sudoku.

    Solve many tile sets, quests and adventures to get your prizes and collections. Help the elves to survive on the lost island.

    2016AdventureFree To PlayCasualFreeDeck PlayableFree to playSimilar games →