Unity - The multiplatform game creation tools for everyone.
PyQt - Riverbank | Software | PyQt | What is PyQt?
Godot Engine - Feature-packed 2D and 3D open source game engine.
Kivy - Open source Python framework for rapid development of applications that make use of innovative user interfaces, such as multi-touch apps. Installation on WindowsInstallation on Windows. Installation; What are wheels .
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Qt - Powerful, flexible and easy to use, Qt will help you not only meet your tight deadline, but also reduce the maintainable code by an astonishing percentage.