Unreal Engine is a game engine developed by Epic Games. Developed by Epic Games
License: Free Personal
Apps available for Mac OS X Windows Linux
Polycode is a C++ and Lua framework for building interactive applications. It is free, open source and cross-platform. Developed by Ivan Safrin
License: Open Source
Unreal Engine excels in high-quality 3D graphics and complex game mechanics, making it a top choice for AAA game development, while Polycode is more suited for indie developers focusing on 2D games due to its lightweight nature and ease of use.