No Man's Sky (unofficial) Development Kit (NMSDK)

NMSDK is a plugin for blender which can be used to convert models to a format compatible with No Man's Sky. It is also able to generate action trigger sequences for custom interactions and events in the game, as well as give the custom models specific properties such as being able to be interactable, able to be flown as a ship, etc.

To get started developing with NMSDK, download the plugin here.

You can see what is in the latest versions here