Open Source Rust Game Engines

A refreshingly simple data-driven game engine built in Rust. All engine and game logic uses Bevy ECS, a custom Entity Component System. Massively Parallel and Cache-Friendly. The fastest ECS according to some benchmarks. Components are Rust structs, Systems are Rust functions. Queries, Global Resources, Local Resources, Change Detection, Lock-Free Parallel Scheduler. Bevy is still in the very early stages of development. APIs can and will change (now is the time to make suggestions!). Important features are missing. Documentation is sparse. Please don't build any serious projects in Bevy unless you are prepared to be broken by API changes constantly. Bevy relies heavily on improvements in the Rust language and compiler. As a result, the Minimum Supported Rust Version (MSRV) is "the latest stable release" of Rust. Built directly on top of Bevy's ECS, Renderer, and Scene plugins.

Data-driven game engine written in Rust. Amethyst uses a rigorous Entity Component System (ECS) architecture to organize game logic. This abstracts away some of the parallelism work, allowing easier exploitation of multi-threading in games. The ECS is rich in features and very efficient, as it never does any memory locking while remaining entirely thread-safe. Amethyst uses gfx-rs to render graphics with Vulkan or Metal. It is meant to be used for 2D and 3D, with various utilities for both types of games. It should be beginner friendly but also allow more advanced uses such as custom render passes and GLSL shaders. Thanks to the Rust programming language, Amethyst uses all CPU cores to run its internals and logic. A lot of optimizations have yet to be done, but the current status is already showing great potential. Amethyst is open source and free software. You can use, read, modify, distribute its source code under the permissive MIT and Apache 2.0 licenses.

Ambient is an open-source, cross-platform runtime and engine for building and deploying high-performance multiplayer games and 3D applications, using a modern stack built on Rust, WebAssembly (WASM), and WebGPU. It aims to make multiplayer game development accessible and flexible, providing an entity-component-system (ECS) at its core that doubles as a real-time in-game database; everything in the game — from world objects to runtime data — is represented as entities + components, which can be synchronized across clients automatically. Ambient supports a package-based workflow reminiscent of Rust’s crate system, where “packages” bundle code, assets, and schema definitions; this modular design encourages reuse, mixing, and sharing of content. The engine includes an asset pipeline that can stream and load common 3D formats (e.g. GLB, FBX) on demand, so players don’t need to pre-download large asset bundles — the engine handles asset streaming.

This is an exercise in some advance programming topics using a text adventure as the central result. This originally began as a project to recreate an old BASIC text adventure, on the ZX Spectrum, using Z80. After developing a very simple byte code VM to handle the game interactions, I realised that there was an opportunity to use some more advance techniques, which in turn can lead to some PC based tools.

ggez is a Rust library to create a Good Game Easily. More specifically, ggez is a lightweight cross-platform game framework for making 2D games with minimum friction. It aims to implement an API based on (a Rustified version of) the LÖVE game framework. This means it contains basic and portable 2D drawing, sound, resource loading, and event handling, but finer details and performance characteristics may be different than LÖVE. ggez is not meant to be everything to everyone, but rather a good base upon which to build. Thus it takes a fairly batteries-included approach without needing a million additions and plugins for everything imaginable, but also does not dictate higher-level functionality such as physics engine or entity component system. Instead, the goal is to allow you to use whichever libraries you want to provide these functions or build your own libraries atop ggez.

macroquad is a lightweight, easy-to-use game library for the Rust programming language, offering developers a relatively simple and streamlined path to build games across platforms. The library is heavily inspired by simpler game frameworks (like raylib), but brings the ergonomic and safety features of Rust to 2D — and some minimal 3D — development. With Macroquad, you don’t need to worry about low-level graphics plumbing: it handles window and input management, rendering, UI, and more, letting you focus on game logic. A strength of Macroquad is its cross-platform reach: it supports desktop (Windows, Linux, macOS), web (via WebAssembly / HTML5), and mobile (Android, iOS) without requiring platform-specific code. Compilation is relatively fast with minimal dependencies, so small projects or prototypes can spin up quickly. Because it’s “batteries included” for common tasks (rendering, drawing shapes, text, basic UI, game loop), Macroquad works well for rapid prototyping.