Cocos simplifies game creation and distribution with Cocos Creator
Open 3D Engine (O3DE) is an Apache 2.0-licensed multi-platform 3D
Voxel game engine in C++ with OpenGL
UZDoom is a feature centric port for all Doom engine games
Cross-Platform C++ 2D/3D game engine
Cross-platform 2D and 3D game engine with modular architecture
scene-oriented, flexible 3D engine (C++, Python, C#, Java)
Multi-platform 2D and 3D game engine
Multi-platform Engine for Desktop, XBOX (UWP) and Mobile games
Powerful, mature open-source cross-platform game engine for Python
Doom-based AI research platform for reinforcement learning
3D Engine c++
GLScene Engine for Delphi & C++Builder VCL Windows 32/64
FlightGear Flight Simulator: free open-source multiplatform flight sim
Vivid3D is a C++ IDE/3D engine, with python scripting.
High-efficiency minimalist C++ wrapper for OpenGL 4.3
LDraw™ editor for LEGO® style digital building instructions.
3D modeler, 3D game maker, 3D demo maker
Opensource Created Custom Viewers For Virtual Worlds like SecondLife.
A fun realistic multiplayer free-and-open-source first-person-shooter!
Cross-platform real-time strategy game (3D)