This is a Blender 2.71 template with embedded scripts for creating mods for the game Space Engineers. It's a community project and not affiliated with the game developers.
You can learn more about it by reading the guide on Steam. This is not yet suitable for those completely new to Space Engineers mods. It assumes some knowledge of how modding works in the game. Once more features are fully implemented, I'll write a modding tutorial and maybe do some videos.
Download links are also in the guide. You're strongly advised to read the guide because some things are not completely obvious.
You may also wish to take a look at or comment on the discussion thread on the Keen Software House forums