Haunters, abandoned and deteriorating Sentinels that appear at night around outposts. They drain energy from bases and are hostile even to other Sentinels.
Collector, a huge Sentinel drone that farms and manages the Gravitino Balls found on planets. They are very protective of the material and can be a challenge with their four turrets.
Protector. Rare, but powerfully strong, the Protector defends dense forests from being mined by players.
Another three days gone by, three more #MarchofRobots concepts for March 4, 5 and 6. I'm still doing my entries as if they were concepts for Hello Games title No Man's Sky. So far, it's been a blast fan-designing for one of my favorite games.