Talos-II
Talos-II is a natural satellite of the gas giant named Talos.
The frontiersmates from Terra re-opened the Cosmic Gate and first stepped foot upon this moon 152 years ago. Talos-II has a nitrogen-rich atmosphere, enough oxygen for life, and sufficient greenhouse gases to keep it warm. However, the alien sun and the massive gas giant that looms in the skies are constant reminders for the pioneers and the countless light-years that exist between their current location and their distant homes.
Fortunately, the great mountain ranges, crisscrossing river systems, and rich vegetation cover nurtured a rather resilient biosphere. After the Cosmic Gate collapsed, the Terrans survived on Talos-II for well over a century. Natural resources have been essential to supporting the livelihood of local populations. For generations, the stranded Terrans and their descendants built and expanded various outposts and towns across this world and created new footholds for civilization.
According to astronomical observations, there are an undisclosed number of natural satellites besides Talos-II orbiting around the gas giant, but only the latter is habitable. Given the unique position of Talos-II in this star system as well as the presence of the Cosmic Gate, we have reasons to believe that this habitable environment was not a coincidental gift of the Universe.