Entropy Game Engine

Custom game engine for browsers written in TypeScript. Modeled after the Unity game engine. Assets for the sample game are from opengameart.org and itch.io.

Getting Started

The best way to get started is to use the Entropy CLI.

• Install the CLI npm i -g @entropy-engine/entropy-cli
• Run entropy init and follow the interactive prompts to create your project

Development

Prerequisites

• Node.js 22+

Setup

npm install

Scripts

Command	Description
npm start	Start sample-game-1 dev server (Vite)
npm run compile	TypeScript compilation (packages only)
npm run build-games	Build all sample games with Vite
npm run lint	Run ESLint
npm run lint-fix	Auto-fix ESLint issues
npm test	Run tests with Vitest
npm run test-watch	Run tests in watch mode
npm run prettier	Format code with Prettier

Tech Stack

• Monorepo: npm workspaces
• Bundler: Vite (sample games)
• Test Runner: Vitest
• Linter: ESLint 9 (flat config)
• Formatter: Prettier 3
• TypeScript: 5.7+

Samples of Games using Entropy

• https://rwherber.com/entropy/sample-game-1
• https://rwherber.com/entropy/sample-game-2
• https://rwherber.com/entropy/sample-game-3