Stride Game Engine - Stride is an open-source 3D Game Engine written in C# and released under the MIT License that allows you to build powerful game worlds for free or to generate income.
FPS Creator Classic - We specialise in game creation tools for a range of devices such as Windows, iOS, Android. With game making tools like GameGuru, AppGameKit, FPS Creator and Dark Basic Professional you can make all types of games.
Cocos Creator - Cocos Creator is more than a efficient, lightweight, free, open-source, cross-platform graphics engine: it's also a platform to create 3D content in real time.
Godot Engine - Feature-packed 2D and 3D open source game engine.
Lobster - Lobster is a game programming language.
G3D Innovation Engine - The G3D Innovation Engine is a commercial-grade C++ 3D engine available as Open Source (BSD...