Outposts are potential colonial settlements established on golden worlds, expanding the Initiative’s efforts and progressing overall Viability. Most importantly, they create valuable living space, allowing for the revival of hibernating colonists still in cryostasis. These freed colonists reward you with Cryo Pod Perks (see Cryo Pods).
Establishing an outpost on a planet requires raising its tracked Viability to a minimum percentage (see AVP). Finding and completing the Remnant vault on a planet raises its Viability considerably and, on its own, is usually enough to establish an outpost there. However, it’s also possible to raise the Viability rating through other activities on the planet without completing the planet’s vault (although that’s extremely difficult!).