The Problem

I finished Praetorium thinking the hard part was over, then walked into the Residence Sector and froze to death in 30 seconds. Where do I even go?

The Solution

The Residence Sector is a late-game area accessed after completing the Praetorium Portal World. It requires cold resistance, introduces a new invulnerable enemy (Krasue), and spans multiple objectives: activate check-in, meet Abe and Janet, suppress the storm, craft the Flamethrower, melt the ice wall, and navigate the Fragments to reach the Dark Lens. This walkthrough covers the full sequence.

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Prerequisites: Before You Enter

Accessing the Residence Sector

1. Complete the Praetorium Portal World.
2. The Praetorium exit portal deposits you at the Residence Sector entrance — located in Office Sector Level 2.
3. Open the double doors immediately. If you don't, the only way back is replaying all of Praetorium.

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Stage 1: Check-In and Meet Abe & Janet

Tram Ride

1. Board the first tram from the entrance — it takes you to a small island with a Check-In Terminal.
2. Use the terminal. This registers your arrival and opens the next tram path.
3. Ride the tram again to reach a second tram stop. Boarding this second tram and riding it back opens a Level 6 Keypad shortcut to Manufacturing Sector — worth doing for the fast travel unlock.

The Lobby

1. Unlock the front door.
2. Meet Abe and Janet behind the front desk.
3. They give you the main objective: "Suppress the Storm."
4. Krasue appears here. This is a frozen Leyak variant — invulnerable to normal weapons. Looking directly at it temporarily repels it. You will craft the OX Lamp/Tower (X-Ray upgrade) later to permanently deal with it.

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Stage 2: Suppress the Storm

Navigate to the Storm Device

1. Head toward the Shopping District — blocked by an ice wall (you can't pass yet).
2. Find Dr. Cahn near the ice wall for dialogue.
3. Go upstairs from Abe & Janet's desk, past the Athletics door.
4. Explore bedrooms on both levels:
   • Dr. Abraham Stern's room — laptop with Krause lore.
   • Dr. Samer Mischo's room — leads to exterior walkways.

The Left Elevator Shaft

1. Find the left elevator shaft — no car, climb the ladders inside.
2. On the roof, go left. Order Snipers are positioned here — take them out at range.
3. Navigate through broken walls to the Barracks area (bunk beds).
4. Fight the Corrupted Robot here. Drop: Heart of Corruption (Corrupted CPU).

Meet Dr. Shepherd

In the barracks area, talk to Dr. Shepherd. He advances the objective.

The Storm Containment Device

1. Go to the food court — take the teleporter, right-side elevator, or stairs.
2. Enter the Sushi restaurant, drop down to a Dr. Manse hologram.
3. Through the yellow doors → cross the soccer field (hole in the fence).
4. Bridge a gap to reach a pool area with the Storm Containment Device.
5. Clear enemies: Neophyte, Witch, Jotun, Corrupted Robot.
6. Insert into the device: Transuranic Superalloy + Heart of Corruption + Leyak Essence.

The storm clears.

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Stage 3: Craft the Flamethrower and Melt the Ice Wall

Reach Dr. Wakeman's Room

1. After the storm clears, go upstairs past the Athletics area — the top floor is now accessible.
2. Fight Bigfoots (tanky yeti-like creatures). Deatomizer or explosives work. They hit hard — dodge sideways, not backward.
3. Push through icy caves and upper floors, activate Dr. Manse holograms along the way.
4. Crawl through vents to find Dr. Wakeman's room.
5. Analyze the glowing red cylinder → unlocks the Thermocell recipe.

Craft the Flamethrower

1. Craft Thermocell at a Chemistry Bench.
2. Craft Flamethrower at a Powered Crafting Bench.
3. While you are at it, craft the OX Lamp / OX Tower (upgrades of X-Ray Lamp/Tower) — this permanently deals with Krasue.

Melt the Ice Wall

Return to the ice wall blocking the Shopping District. Equip the Flamethrower and melt it. The path to the Fragments opens.

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Stage 4: The Fragments and Dark Lens

The Shopping District has shattered into floating islands called Fragments. Glowing orbs act as Jump Pads between them.

1. Navigate through Taco Mine, use Jump Pads to cross gaps.
2. Meet Dr. Riggs in a broken office — she warns Gatekeepers are activating the Dark Lens.
3. Find the purple Jump Pad → takes you to Botanics.
4. Meet Dr. Newman in Botanics.
5. Enter the red portal → Divarication Portal World.
6. Navigate Divarication (multiple sections), fight Gatekeeper Chieftains, press buttons in Door Control rooms.
7. Progress through to the Dark Lens encounter.

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Krasue: How to Deal With It

The OX Lamp/Tower recipe unlocks from the Thermocell analysis. Craft it as soon as you can — Krasue will haunt you through the entire Residence Sector until you do.

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Key Locations Quick Reference

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Common Deaths

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See Also

• Cascade Labs complete walkthrough
• Containment Block Helmholtz walkthrough
• Endgame gear progression checklist
• Leyak Essence farming guide
• All bosses and enemies guide