Thermo Sudoku

Thermo Sudoku, developed and published by Studio Goya, is a carefully crafted logic puzzle experience that builds upon the familiar structure of Sudoku while introducing a single, well-conceived twist that significantly deepens the challenge. Rather than overcomplicating the formula with multiple mechanics, it focuses on the concept of thermometers—visual paths within the grid where numbers must increase from one end to the other—and uses this idea as the foundation for its entire design. The result is a game that feels intuitive at first glance but gradually reveals a surprising level of depth as players engage with its puzzles. The traditional rules of Sudoku remain intact, requiring players to fill a 9×9 grid with numbers from 1 to 9 without repetition across rows, columns, and subgrids. What changes is how these numbers are placed in relation to the thermometers embedded in the puzzle. Each thermometer enforces a strict ascending order, meaning that numbers must increase step by step along its path. This seemingly simple addition transforms the way players approach the grid, as every placement must now satisfy both the standard rules and the directional constraints imposed by …

I'm not even the biggest fan of regular sudoku but this just hits differently. It scratches an itch I didn't even know I had

Great puzzles and this concept makes sudoku more fun to solve in my opinion, the last few especially are tough! I wish you had all the puzzles unlocked from the start.

Addictive

it's a sudoku game. if you like sudoku you'll like this. the hints are well designed and great for when you're stuck in that they both explain why a number goes in a square as well as what number goes in a square

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