The Encounters Add-on for EVERSPACE has 8 achievements.
Complete all tasks for Tareen.
Complete all tasks for Throng.
Help the Coalition become a force to be reckoned with.
Decide Karlie's Fate.
Max out all perks for the Colonial Sentinel.
Feed a Green Goo until it bursts.
Have a primary weapon other than the Ancient Weapon installed that does more than 200 shield or hull dps.
Use the Colonial Sentinel 15 times.