Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Unity - The multiplatform game creation tools for everyone.
SelfCAD - SelfCAD is an online 3D modeling and slicing software.
AndEngine - AndEngine is a free android 2D OpenGL game engine.
Clara.io - Free online 3D modeling software: Design, editor, animation, rendering, & lots of free 3D models. Supports Three.JS, Blend, FBX, OBJ, V-Ray, Babylon.JS, STL.
LibGDX - Libgdx is a Java game development framework that provides a unified API that works across all...