11 releases

Uses new Rust 2024

0.0.18	Apr 5, 2025
0.0.17	Mar 6, 2025
0.0.17-alpha.2	Jan 15, 2025
0.0.12	Dec 3, 2024
0.0.11	Nov 30, 2024

#1473 in Game dev

314 downloads per month
Used in 11 crates (6 directly)

MIT license

235KB
3K SLoC

Limnus

Limnus is a foundational game engine framework designed to serve as a robust platform for building custom game engines. Rather than being a standalone engine, it provides the essential building blocks and architecture that game engine developers need.

Overview

Limnus offers a modular, extensible architecture that handles core game engine concerns such as:

Resource management
Platform abstraction
Message systems
Asset handling
Audio systems
Input processing
Rendering abstractions

If you're looking for a complete game engine solution, consider these projects built on Limnus:

Swamp Engine

A full-featured 2D game engine that leverages Limnus's architecture to provide an optimized development experience for 2D games.

Mangrove Engine

A 2D game engine with integrated scripting capabilities, built on the Limnus Engine (and in turn Limnus) framework. Ideal for developers who want the power of a custom engine with the flexibility of scripted gameplay logic.

Architecture

Limnus is built with modularity in mind, allowing engine developers to:

Pick and choose components they need
Extend existing functionality
Replace modules with custom implementations

Target Audience

Limnus is designed for:

Game engine developers
Teams building custom engine solutions
Developers who need fine-grained control over their engine architecture

Installation

Add the following to your Cargo.toml:

limnus = "0.0.10"

Detailed information

Crates

Core Framework

Crate	Description
`app`	Application management. Entry point for registering plugins and systems
`boot`	Standard application bootstrapping and initialization
`log`	Platform-specific logging initialization for tracing

Task System

Crate	Description
`system`	Task registration with automatic dependency injection
`system-runner`	Task execution engine with dependency ordering
`system-state`	Shared state and resource management for tasks
`message`	Inter-task communication

Window Management

Crate	Description
`window`	Platform-independent window abstraction
`window-runner`	Window event loop and runtime
`screen`	Screen configuration and management
`wgpu-window`	WGPU-based rendering integration

Resource Management

Crate	Description
`resource`	Core resource management
`local-resource`	Local resource handling
`loader`	Generic resource loading framework
`loader-plugin`	Extensible loader plugin system

Asset System

Crate	Description
`assets`	Asset management and loading
`assets-loader`	Asset loading implementations
`asset-registry`	Asset registration and tracking
`asset-id`	Asset identification and referencing

Input Handling

Crate	Description
`basic-input`	Keyboard and mouse input handling
`gamepad`	Gamepad abstraction layer
`gamepad-gilrs`	Gamepad implementation using gilrs

Audio System

Crate	Description
`audio`	Audio system management and playback
`audio-sample`	Audio sample loading and processing

Other

Crate	Description
`macros`	macros for Resource, LocalResource, Message and Asset

About Contributions

This is an open source project with a single copyright holder. While the code is publicly available under LICENSE, I am not accepting external contributions at this time.

You are welcome to:

Use the code according to the license terms
Fork the project for your own use
Report issues
Provide feedback
Share the project

If you have suggestions or find bugs, please feel free to open an issue for discussion. While I cannot accept pull requests, I value your feedback and engagement with the project.

Thank you for your understanding and interest in the project! 🙏

License

This project is licensed under the MIT License - see the LICENSE file for details.

Dependencies

~23–60MB
~1M SLoC