Rich HTML UI engine for UE4
A game engine written in the D programming language
A Flash Molehill (Stage3D) GPU accelerated 2D game engine
a very lightweight advanced terrain-rendering and 3D map rendering sys
A C++ 3D game engine.
Free-roaming 3D racing game featuring advanced terrain rendering
Plugin based multi-purpose dev tool.
Cross-platform C framework very compact libraries and tools.
Performance enhancement API for RPG Maker XP, VX, VXA.
Pygrid is an open-source and cross-platform pygame/python 2D engine.
The Flixel Power Tools are a set of plug-ins for Flixel 2.5+
BxEngine For Marmalade And QT
Start Tunneling for Anonymous People
Game created with playrix engine.
Graph editing tool
Cross platform 2D game creation framework with Python bindings
C-Lesh is a game programming language for 2D games.
Access to Irrlicht Engine SDK from assembler, C, Python, Basic, Pascal
Cross-platform reimplementation of AMOS BASIC (runtime)