Star Wars : EotE Minos
There are over 70 planets in the Cluster suitable for life, but only a few dozen actually contain sentient life. There are two alien species in the Cluster that have achieved the technology necessary for space travel, but scores of others have not advanced past the stone age (Though some just barely) Humans can be found on dozens of planets but some have only a tiny settlement or scientific outpost, and only six planets have been fully colonized.
(Please note, many of these planets locations would contradict established Star Wars Canon. Any contradictions are made for the game only, and only affect game play)