- Soren the Architect (Formerly)
- Iron Golems (Formerly)
- Hostile Mobs (Temporarily)
- Endermen (Formerly)
- Reuben (Pig)
- Magnus the Rogue
- Ellegaard the Redstone Engineer
- Gabriel the Warrior (Determinant)
- The Wither Storm
- It was partially destroyed by the Wither Storm in "A Block and a Hard Place" due to it being in the area where the Wither Storm was.
- Both the End Portal and Soren's Mob Grinder are located inside Soren's Fortress.
- Acording to Magnus, Soren had invited him to come to his fortress a few times, after the Order broke up.
- Petra visits the fortress regardless of whether she is saved or not in Episode 1.
- If she isn't saved, in Episode 4, she follows Jesse and the crew to the fortress after the trip to the Far Lands; if she is saved, in Episode 2, she enters the fortress with the gang to find Soren.