The Devil's Calculator

About

"The Devil's Calculator" is a challenging puzzle game that tasks players with solving complex equations using limited buttons and functions. The game features multiple levels of difficulty, as well as a level editor for players to create and share their own puzzles. With its unique gameplay mechanics and devilishly difficult puzzles, "The Devil's Calculator" is a must-play for any serious puzzle fan.

Genres & Tags

Play Modes

96%

Audience ScoreBased on 105 reviews

graphics3 positive mentions

gameplay3 negative mentions

Engaging and challenging puzzles that require critical thinking and creativity, making it a great brain teaser for math enthusiasts.
Unique concept of reverse engineering a calculator with mystery operators, providing a fun and addictive gameplay experience.
Well-designed difficulty progression that introduces new mathematical concepts gradually, keeping players engaged without overwhelming them.

The in-game calculator is clunky and lacks essential features like a backspace button, making it frustrating to use during gameplay.
Some players may find the reliance on external tools like Wolfram Alpha necessary, which detracts from the self-contained puzzle-solving experience.
Menu navigation and window resizing issues can hinder the overall user experience, making it less intuitive to access certain features.

gameplay
6 mentions Positive Neutral Negative
33%
17%
50%
The gameplay of "Devil's Calculator" revolves around creatively using calculator functions to achieve the target number, 666, with a unique thematic twist that enhances the puzzle-solving experience. While the clever design integrates gameplay mechanics with thematic elements, some users find the user interface slightly cumbersome, which can detract from the overall experience. The developers are also seeking input from mathematics graduate students to refine the game's mechanics and puzzles further.
- “It does help, however, that the developer found an incredibly clever way to present this gameplay to the player through its theming: the goal of every level is to use the operators to create the beast's number, 666.”
- “The unique decimal representation works well with the mechanic to disable certain buttons (e.g., if the operator allows neutral operations with certain inputs, just disable the 6 button so players can't simply type 666 and perform a neutral operation).”
- “The UI makes it slightly cumbersome to get to the meat of the gameplay.”
- “But maybe this helps show that the theme (probably) wasn't chosen arbitrarily, but there were gameplay reasons for it.”
- “Devil's Calculator is a puzzle game focused on the following mechanic: you want the calculator to display the number '666' using (all of) the functions on your calculator.”
graphics
3 mentions Positive Neutral Negative
100%
67%
The game's graphics effectively embrace a calculator aesthetic, which many users appreciate for its unique charm. However, this design choice can lead to confusion, particularly when trying to adjust the display for multitasking, as it may hinder accessibility to key features like the graphing window.
- “The game owns its aesthetic.”
- “I understand the desire to maintain the calculator aesthetic, and it does work strongly in the game's favor.”
- “The graphics create a unique and engaging visual experience.”
- “I understand the desire to maintain a calculator aesthetic, but it was very confusing when I tried to adjust the game to fit half-screen so I could use a spreadsheet on the other half, but realized it would never fit.”
- “I understand the desire to maintain the calculator aesthetic, and it does work strongly in the game's favor, but I can't actually find the graphing window anymore.”
humor
2 mentions Positive Neutral Negative
100%
The humor in the game is highlighted as both whimsical and engaging, blending comedic elements with challenging logic puzzles, particularly in a math-based context. Players find it reminiscent of dreamlike scenarios, enhancing the overall experience with its unique and amusing approach.
- “This game is somewhat reminiscent of what my dreams look like, being both very funny and a challenging logic game for me.”
- “Funny math-based puzzle game.”
story
1 mentions Positive Neutral Negative
100%
The game features a fun and engaging story that adds depth to the overall experience, enhancing its appeal to players.
- “Very fun and interesting little game, even comes with a story.”
music
1 mentions Positive Neutral Negative
100%
Players express a desire for the game's music to be engaging enough to complement their gameplay experience, indicating that the current soundtrack may not be captivating or immersive enough on its own.
- “I want to listen to music while I play this game.”
optimization
1 mentions Positive Neutral Negative
100%
The game is praised for its stellar performance and is highly recommended for its optimization.
- “Stellar performance all around, and highly recommended.”

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