# Pill Engine > Pill is a modern, free and blazingly fast game engine: an Entity Component System core written in Rust, hot reloading in 1-2 seconds, and a WebAssembly build under 0.5 MB. Open source (MIT) and community driven. Key resources: - [Documentation](https://docs.pill.rocks/guide/): installation, ECS, Pill launcher, contributing guides and the full API reference - [LLM-friendly docs index](https://docs.pill.rocks/llms.txt): curated Markdown links to the documentation for AI agents and tools - [Full documentation as one file](https://docs.pill.rocks/llms-full.txt): every docs page concatenated into a single Markdown file - [Demos](https://pill.rocks/demos): gameplay videos and example projects - [GitHub repository](https://github.com/Pillware/Pill): source code, examples and issues - [Discord community](https://discord.gg/VUKNQrctms) ## Optional - [Guide start](https://docs.pill.rocks/markdown/guide/getting-started/setup.md): step-by-step setup for a first Pill project - [What is Pill](https://docs.pill.rocks/markdown/guide/what-is-pill.md): architecture and feature overview in plain Markdown