Hideout: Space Outpost

The main door will be locked so explore the available areas to find the necessary levers you can interact with. There's also a flying chest in one of the rooms.

Once the main door is open, backtrack and continue forth. There's a lone chest in a large room that can loot. Just defeat all enemies to lower the spikes surrounding it. Now find the portal leading to the next area and enter it.

Explore the room until you reach a boss area. You have to face the Tyranozor. This boss's armor is insane so don't bother trying to damage it using your character's attack alone. There are floor panels in the corners of the room. Lure the boss to the grates near the floor panels and step on the panels to activate the trap while the boss is standing over it.

After defeating the boss, access the computer to complete the hideout. Continue to the new district you just unlocked.