Flax Engine, multi-platform 3D game engine
Powerful, mature open-source cross-platform game engine for Python
An open source re-implementation of RollerCoaster Tycoon 2
Dungeon free resources (terrain & roguelike generation)
Intrinsic is a Vulkan based cross-platform game and rendering engine
.NET wrapper for the Irrlicht Engine
C/C++ Programing with ALLEGRO 4.2.2 - Win32/64 - LINUX - MACOSX