StrategyFit check
Is The Devil's Calculator worth it for you?
We tell you who should skip it, too.
Play it if you…
Good fit- Number enthusiasts who want logic puzzles built around mathematical functions
- Math learners who prefer solving problems through experimentation and algebra
- Puzzle creators who want to make and share custom levels
Skip it if you…
Saves you a refund- Players seeking action, combat, or fast reflex challenges rather than mathematical deduction
- Players who want a fixed, purely narrative puzzle campaign without level creation or community stages
- Players looking for a broad multiplayer party game rather than a calculator-based logic puzzler
Our take on The Devil's Calculator
Rather than using arithmetic as a supporting tool, this puzzle game makes the calculator itself the mystery. Progress depends on reconstructing what corrupted operators do, turning graphing, algebra, and interpolation into the central structure instead of optional puzzle aids.
What is The Devil's Calculator?
The Devil's Calculator is a mathematics puzzle game built around an altered calculator whose familiar operations have been replaced by obscure functions.
Each level asks players to determine how an operator works, then use logic, algebra, graphing tools, and other resources to calculate 666. Progression unlocks level creation and access to challenges made by other players, educators, mathematicians, and the creators. The demo includes more than 20 free levels. The game uses hand-drawn artwork and a story about removing demons from the calculator. It is open-source and made by a non-profit organization. Students and educators with . edu or . ac. uk email addresses can request a free Steam key.
How The Devil's Calculator plays
- 01Operator deduction
- Players infer the behavior of unfamiliar mathematical functions before using them to reach 666.
- 02Graphing tools
- Advanced graphing mechanics and additional resources support the process of analyzing functions.
- 03Custom level creation
- Progression grants the ability to build original stages and play challenges made by other players.
- 04Community challenges
- The available level pool includes stages from players, educators, mathematicians, and the creators.
- 05Free demo content
- The demo contains more than 20 levels that can be played without charge.
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The Devil's Calculator: platforms & release
Is The Devil's Calculator worth it?
It is worth it if: number enthusiasts who want logic puzzles built around mathematical functions. Skip it if: players seeking action, combat, or fast reflex challenges rather than mathematical deduction.
Where can I download The Devil's Calculator?
Use the Download Now button on this page: it opens The Devil's Calculator's store page, where you can choose how to get it.
What platforms is The Devil's Calculator on?
Windows, macOS and Linux.
