SketchUp - 3D for Everyone
Unity - The multiplatform game creation tools for everyone.
Lightwave 3D - LightWave 3D combines a state-of-the-art renderer with powerful, intuitive modeling, and animation...
Godot Engine - Feature-packed 2D and 3D open source game engine.
Sketcher 3D - Sketcher3D is a 3D modeling, design, and fun physics sandbox.
Unreal Engine - Unreal Engine 4 is a suite of integrated tools for game developers to design and build games, simulations, and visualizations.