3d Engine GitHub Repositories (2026) · Open Source Tools

Webots Robot Simulator

3D and 2D game engine written in Rust

LayaAir is a fully platform rendering engine with rich 2D/3D rendering capabilities and a mature integrated development platform

An Open Source C# 3D Game Engine under MIT license, inspired by Unity and featuring a complete editor

A new, render-graph based 3D game engine for Linux and Windows using C++20 and Vulkan API 1.3 (in early development)

Lightweight Game Engine/Framework in C++17 with WYSIWYG Editor. Experimental C# bindings.

Nazara Engine is a cross-platform framework aimed at (but not limited to) real-time applications requiring audio, 2D and 3D real-time rendering, network and more.

3D FPS game engine with full dynamic lighting and shadows

A High-Performance Rendering Engine for Rust

CADability is a pure .net class library for modeling and analyzing 3d data, both with your code and interactively. It comes with an optional Windows.Forms user interface, which can be adopted to other environments. It does not refer to other 3d modeling libraries. For data exchange you can use STEP, STL or DXF files.