A free & open-source 2D sprite editor, made with the Godot Engine
Java/JavaFX/Kotlin Game Library (Engine)
Real-time physically based rendering engine for Android, iOS, and more
realistic driving simulation + functions for 2D/3D graphics
Modern, lightweight and efficient 2D level editor
A Strong and Easy-to-use Single View 3D Hand+Body Pose Estimator
Vivid is a modern C++ 3D engine using OpenGL4+
Java bindings for Skia
Cross-platform 2D and 3D game engine
Geostatistics and geosciences modeling software
Java 2D graphics/utility library
Gimpel3D - 2D/3D Stereo Conversion Editor
Game engine supporting many 3D/2D formats and graphic effects
Actionscript 3 Particle Engine for Flash and Flex