Ultra Sudoku

Ultra Sudoku

thepowerlies · 2024 · Casual, Puzzle, 2D, Logic, Singleplayer

PC
4 user reviews75% · 4 📉 Recent reviews down 47%
This game is free to play. Get it on Steam →

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About Ultra Sudoku

Ultimate Puzzle Challenge, where traditional Sudoku meets exciting new variations! Enjoy endless puzzles in classic 9x9 and advanced 16x16 modes, or test your skills with our unique Mix 4x9x9 and 5x9x9 boards, where multiple grids intertwine to create a brain-teasing experience.

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Jul 3, 2026
Would be perfect if it had a notes feature and some more background themes
Not recommended Mar 28, 2026
missing essential functionality such as marking potential numbers for a square. All you can do is set the number for a square any you have to keep conflicts in your head as you play which makes this version far inferior to every other sudoku I've ever played.
Not recommended Mar 5, 2026
it always gives false, unsolvable always gives invalid grids and broken puzzles that are logically unsolvable
Not recommended Feb 26, 2026
Pros: Free Cons: Can't add notes, can't use numpad, can't reset board if you make an error. Also, I don't know if I just missed it somewhere but I couldn't find out how to undo a move If I ever made a mistake. The amount of times I had a miss click or fat fingered on free spaces was incredibly irritating when playing difficult and large puzzles. Without a notes feature to keep track and no "known to me" undo button, I was also keeping track of all the errors I placed on the board mentally. Still enjoyable because it's Sudoku but I'm ready to try a different Sudoku and say goodbye to Ultra Sudoku permanently.
Not recommended Feb 1, 2026
sade sudoku. neredeyse hiçbir özelliği yok. tırnak keser gibi bir oynanışla birlikte oyun en az 3 kere çöktüğü için hatta görev yöneticisiyle kapatılmadığı için ızdırapla oynadım. bu kadar saat oynanış değil, 20 saati açık kaldı. dedim biiperler saat kasıldı. artıları: +ücretsiz +başarımlar (yarım artı) eksileri: --çökme sorunları (godot sağ olsun) -keyifsiz oynanış (pratik değil) -kalitesiz başarımlar (ayrıca profilde yansımıyor) (yarım eksi) [1.5/5] gerek yok. telefondan oynayın daha iyi.
Recommended Dec 15, 2025
Sudoku puzzles are great and always good for a quick break. The various versions besides the standard one are also well-designed.

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