Answer
- You need to own and install both Civ:BE and Starships
- You need to login to your 2K Account on both games, so they are registered there
- After winning a game press “one more turn”
- The Play in Starships button should now be usable and will transfer your save to Starships
- This allows you to start a Starships game with several bonuses.
Here is a list detailling all the possible bonuses: Civ-Wiki
The hybrid affinities essentially grant you the abilities of both, so they are much stronger than the basic affinities you can pick in Starships.
Attribution
Source : Link , Question Author : angussidney , Answer Author : Dulkan