Thermo Sudoku

Thermo Sudoku

Released May 2020

How does Thermo Sudoku work? Each sudoku grid contains thermometer shapes (often drawn to create themes) and digits on thermometers must increase as one moves further from the bulb end.

95% positive · 161 reviews
Done
All announced content has been released
High confidence
Done
All announced content has been released
High confidence

Where to buy

Steam $4.99
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Evaluation

Thermo Sudoku launched on May 25, 2020 with 40 puzzles, and the store description explicitly stated a goal of 100 puzzles total, to be reached through regular updates in the first year post-launch. The developer delivered on this promise across two major content updates: 20 new puzzles in March 2021 (bringing the total to 80), and a final batch of 20 puzzles on April 1, 2022, completing the full set of 100. The April 2022 update explicitly confirmed that all 100 puzzles are now available. This represents the fulfillment of the developer's original content commitment. There have been no developer communications since April 1, 2022, and no further content has been announced. The game shipped as a finite puzzle collection and has now reached its stated complete state.
Evidence
Final 20 puzzles added; developer confirms all 100 puzzles are now available, fulfilling the original content commitment
news post · Apr 1, 2022 source development ending
high
20 new puzzles added alongside the launch of Smart Hints (beta), progressing toward the 100-puzzle goal
news post · Mar 30, 2021 source content shipped
high

Media

Details

Developer
Publisher
Studio Goya
Achievements
—
Platform
Windows, macOS
Controller
—
Steam Deck
Not rated
Players
Single-player

About this game

Presented by Cracking The Cryptic, YouTube’s most popular Sudoku channel, comes a new game featuring one of the most popular puzzle types: Thermo Sudoku.

How does Thermo Sudoku work? Well each sudoku grid contains thermometer shapes (often drawn to create themes) and digits on thermometers must increase as one moves further from the bulb end. The interactions between the thermometers leads to new logical ideas and patterns that completely refreshes the standard sudoku solving experience.

As with their other games (‘Classic Sudoku’, ‘Sandwich Sudoku’ and ‘Chess Sudoku’), Simon Anthony and Mark Goodliffe (the hosts of Cracking The Cryptic) have personally crafted the hints for the puzzles. So you know that every puzzle has been play-tested by a human being to ensure that the sudoku is interesting and fun to solve.

In Cracking The Cryptic’s games, players start with zero stars and earn stars by solving puzzles. The more puzzles you solve, the more stars you earn and the more puzzles you get to play. Only the most dedicated (and cleverest) sudoku players will finish all the puzzles. Of course the difficulty is carefully calibrated to ensure lots of puzzles at every level (from easy through to extreme). Anyone familiar with their YouTube channel will know that Simon and Mark take pride in teaching viewers to be better solvers and, in these games, they always craft the puzzles with the mindset of trying to help solvers improve their skills.

Mark and Simon have both represented the UK many times at the World Sudoku Championship and you can find more of their puzzles (and lots of others) on the internet’s biggest sudoku channel Cracking The Cryptic.

Features:
  • 40 beautiful puzzles on launch
  • 100 puzzles in all with regular updates to reach this total in the first year post launch.
  • Hints crafted by Simon and Mark!
Last evaluated Jun 25, 2026
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