Ossim is a simulation baking tool. It allows you to generate an armature and skinned geometry based on physics simulation to use in game engines and realtime applications such as Unreal Engine 4 or Unity3d and many others.

Ekspørteur is a tool for game developers who need a way to manage assets and LODs in one scene and export them efficiently.

It keeps track and organize exports by grouping scene objects in Assets and their LODs.

This is a collection of tools that I personally use for modelling.

Baya is a Blender tool that generate Maya source file (.ma) inside Blender. - It is a quick way to exchange data with other artists who might use Maya - You can iterate quickly when you work with Maya oriented game engine exporters by quickly generating Maya source and exporting using Maya