Babylon.js is a powerful, beautiful, simple, and open game and rendering engine packed into a friendly JavaScript framework.
General purpose 3D and 2D game engine using Go (golang) and Vulkan with built in editor
A complete 3-D game development suite written in Java.
The multiplayer game engine
Terasology - open source voxel world
An OpenGL RTS game engine written in C
The ioquake3 community effort to continue supporting/developing id's Quake III Arena
Amazon Lumberyard is a free AAA game engine deeply integrated with AWS and Twitch – with full source.
3D Procedural Game Engine Using OpenGL
Tiny OpenGL Wrapper / 3D Engine in C++
Nebula is an open-source and free-to-use modern C++ game engine.
Cross-platform port of Arx Fatalis, a first-person role-playing game
An Open Source C# 3D Game Engine under MIT license, inspired by Unity and featuring a complete editor
ET: Legacy is an open source project based on the code of Wolfenstein: Enemy Territory which was released in 2010 under the terms of the GPLv3 license.
Fun with WebGL 2.0 Youtube Tutorial Series
The BombSquad Game Engine
Archived repository. For current repo, see: https://github.com/etlegacy/etlegacy
WeDot 是一个专注于技术和用户体验的多平台 2D 与 3D 游戏引擎，开发者可以把注意力集中在游戏开发本身，而非繁杂的技术细节。
Source code for cross-platform OpenGL gaming engine
Multi-platform game where you feed well dressed animals with sushi
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