Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.
BlitzPlus - Create 2D Games for Windows.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
BlitzMax - With the developing version BlitzMax NG other 'targets' are available: ARM architecture, Raspberry, Android, HTML (Emscripten). RAPID DEVELOPMENT. Just open the IDE, write your code, hit F5 and see immediately the results!
Unity - The multiplatform game creation tools for everyone.
Monkey 2 - An easy to use, cross platform, games oriented programming language