A free & open-source 2D sprite editor, made with the Godot Engine
Java/JavaFX/Kotlin Game Library (Engine)
3D and 2D game engine written in Rust
Modern, lightweight and efficient 2D level editor
Vivid is a modern C++ 3D engine using OpenGL4+
A homebrew video suite for game consoles
Cross-platform 2D and 3D game engine
Vivid Engine 2 is an open source 3D Engine coded using C# and C++.
XNA based game engine completely written in c#
Java 2D graphics/utility library
3D game engine for C and C++
Access to Irrlicht Engine SDK from assembler, C, Python, Basic, Pascal
Game engine supporting many 3D/2D formats and graphic effects
A c# 2D Vector Graphics Library - and more.
http://tazimehdi.com