Equation Pyramid - A Math Puzzle Game Inspired by The Devil's Plan
- Published on
Introduction
Equation Pyramid is an interactive math puzzle game inspired by the Netflix reality show The Devil's Plan: given a set of numbers, arrange arithmetic operations to form valid equations.
It's an open-source project Carol and I built together — she designed the game experience and interface, and I turned it into a 3D game you can play right in the browser.
Demo & Source Code
- Play now: equation-pyramid.carolhsiao.com
- Source code: github.com/carolhsiaoo/equation-pyramid
No download needed — it runs in your browser.
Why we created this project
After watching The Devil's Plan, we were hooked on the Equation Pyramid game: simple rules (form equations from numbers), deep strategy (the same numbers combine in many ways), and dangerously addictive.
The problem: there was nowhere to play it online. So we built one ourselves — and open-sourced it so anyone who loves the game can play it in the browser.
Key Features
- Strategic challenge: arrange arithmetic operations into valid equations — every position matters.
- Instant validation: equations are checked automatically, so you know right away whether you got it.
- 3D pyramid: the pyramid comes alive as you solve, making the puzzle feel immersive.
- Any device: works on desktop, tablet, and phone.
Technologies
Equation Pyramid is a web game built with Next.js, TypeScript, and React Three Fiber, deployed on Vercel. If you're curious about 3D rendering in React or game logic, the whole codebase is on GitHub — dig in.
Closing
Ready to test your math instincts? Head to equation-pyramid.carolhsiao.com and play.
If you enjoy it, a star on GitHub makes our day — and if you find a bug or have an idea, open an issue or leave a comment below!