GDevelop now provides a powerful 3D Physics engine, allowing to create any kind of 3D games. You can also try the simple 3D FPS example. Adding physics to 3D objects: similar to the 2D physics engine, ...
The environment in the paper engine is not 3D. The technique used to simulate the environment is just changes in scale and skew of objects. Automatically the entire scene is scaled in half to give the ...