Seedfall

From the introduction:

Seedfall is a tabletop role playing game that focuses on the events following the landing of the first sleeper ship. Within the pages of this book you will uncover both the horrific secrets of Terra Scorpii and the rules you will need to navigate them.

User summary:

The game presents an intriguing and well developed setting. The rules favor narrative action over mechanical resolution. Characters primarily are defined with a series of narrative tags, grouped into various character elements.