Unity - The multiplatform game creation tools for everyone.
Esko Studio - Studio is a unique set of tools for 3D packaging design made specifically for packaging artwork...
Godot Engine - Feature-packed 2D and 3D open source game engine.
Boxshot - Virtual 3D packaging mockup and rendering software.
Blender - Blender is the open source, cross platform suite of tools for 3D creation.
Placeit - Generate realistic product shots in seconds