Here is the full list of all 11 STARDROP achievements.
Complete Chapter 4.
Collect 50 DataPads in the game
Complete Chapter 3.
Complete Chapter 2.
Find the secret back-room aboard the SD-01.
Read John's secret Email to Aryn.
Find and pick up this Easter Egg from "Play With Gilbert".
Complete Chapter 1.
Change into your APD suit.
Pick up John's DataPad.
Give Rascal some food.