IMHO.

Single-player games like Sudoku Universe / 数独宇宙

Below are 12 single-player Steam games similar to Sudoku Universe / 数独宇宙, 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 Sudoku Universe / 数独宇宙 page.

Ranked picks

  1. 1
    Sudoku Jigsaw / 拼图数独 — Steam game cover

    Sudoku Jigsaw / 拼图数独

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Strategy and Indie with Sudoku Universe / 数独宇宙.

    Love Sudoku, but tired of default one? Try this.

    2018StrategyIndieCasual2.99 USDSingle-playerSimilar games →
  2. 2
    Sudoku Killer / 杀手数独 — Steam game cover

    Sudoku Killer / 杀手数独

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Strategy and Indie with Sudoku Universe / 数独宇宙.

    Killer Sudoku (Sumdoku/Mathdoku/Addoku) puzzles include all the rules of regular Sudoku, but add in dashed-line 'cages', which must sum to given values. This great brain exerciser will provide you many hours of new Sudoku experience and be nice addition to your puzzle collection.

    2018StrategyIndieCasual2.99 USDSingle-playerSimilar games →
  3. 3
    Nonogram - The Greatest Painter — Steam game cover

    Nonogram - The Greatest Painter

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Strategy and Indie with Sudoku Universe / 数独宇宙.

    Do you deserve to be called The Greatest?

    2018StrategyIndieCasual3.99 USDDeck PlayableSingle-playerSimilar games →
  4. 4
    Lines Infinite — Steam game cover

    Lines Infinite

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Strategy and Indie with Sudoku Universe / 数独宇宙.

    Beautiful & relaxing Numberlink puzzles.

    2017StrategyIndieCasual1.99 USDSingle-playerSimilar games →
  5. 5
    Lines X — Steam game cover

    Lines X

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Strategy and Indie with Sudoku Universe / 数独宇宙.

    Beautiful & relaxing Numberlink puzzles.

    2017StrategyIndieCasual1.99 USDSingle-playerSimilar games →
  6. 6
    Wayout — Steam game cover

    Wayout

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Indie and Casual with Sudoku Universe / 数独宇宙.

    Relax, clear your mind and find the way out.

    2016IndieCasual1.99 USDSingle-playerSimilar games →
  7. 7
    SiNKR — Steam game cover

    SiNKR

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Strategy and Indie with Sudoku Universe / 数独宇宙.

    SiNKR is a minimalist puzzler using various contraptions to sink pucks. Responsive ambient music. No holes left behind.

    2017StrategyIndieCasual3.99 USDDeck VerifiedSingle-playerSimilar games →
  8. 8
    Lines X Free — Steam game cover

    Lines X Free

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Strategy and Indie with Sudoku Universe / 数独宇宙.

    Beautiful & relaxing Numberlink puzzles.

    2017StrategyIndieFree To PlayFreeSingle-playerSimilar games →
  9. 9
    Zen of Sudoku — Steam game cover

    Zen of Sudoku

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Indie and Casual with Sudoku Universe / 数独宇宙.

    From the creators of Natural Selection comes Zen of Sudoku, a relaxing, easy to play version of Sudoku for your PC.Relax with hand-painted Japanese-styled backgrounds, no timer and lush natural soundscapes.Stimulates your brain to keep it healthy and alert.

    2006IndieCasualFreeDeck PlayableSingle-playerSimilar games →
  10. 10
    Mythos: Sudoku — Steam game cover

    Mythos: Sudoku

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Casual with Sudoku Universe / 数独宇宙.

    Embark on a mythic adventure and experience sudoku in a whole new way, with new rules and magical items as you overcome trials and find your way home.

    2022Casual7.99 USDSingle-playerSimilar games →
  11. 11
    Sorry, James — Steam game cover

    Sorry, James

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Strategy and Indie with Sudoku Universe / 数独宇宙.

    JAMES_GARNER zEiaQe@z1l3

    2017StrategyIndieAdventure6.99 USDSingle-playerSimilar games →
  12. 12
    Wayout 2: Hex — Steam game cover

    Wayout 2: Hex

    Single-player alternative to Sudoku Universe / 数独宇宙 — playable solo, no multiplayer required. Shares Indie and Casual with Sudoku Universe / 数独宇宙.

    Can you find it again?

    2017IndieCasual1.99 USDDeck VerifiedSingle-playerSimilar games →