End of Abyss Walkthrough Part 1: Outer Sector & Habitation Sector

Part 1 covers the opening descent: following Soldier E-19 into the facility, powering the Beacon in the Habitation Sector, and unlocking the first fast-travel Shuttle behind the game’s first boss. This is also where the game teaches its three core verbs — shoot, dodge, and scan — so keep the scanner guide in mind from the first corridor.

Follow Soldier E-19 (Outer Sector)

The entire opening is a guided path — follow E-19, pull the levers, and learn the scan-and-shoot door mechanic. There is exactly one route:

1. Follow Soldier E-19 through the Outer Sector, using the levers along the way.
2. At the locked door, use the scanner to sweep the surrounding walls — it reveals hidden Energy Nodes wired to the lock. Shoot each node to open the door.
3. Ride the lift down with E-19 until you reach a room with a triangle marked on the floor, where the crew splits up.

The Energy Node door is a pattern the game reuses all the way to the finale — scan the walls near a sealed door, follow the wires, shoot the nodes.

Unlock the Habitation door

From the triangle room, detour through a vent to grab the Worker Access Keycard, then return to E-19. Your route:

1. Take the door in the top right of the triangle room — that’s your first safe room (yellow-lit door). Rest at the pod: safe rooms save, heal, recharge your health boosters, and let you craft.
2. Continue to some stairs, go up, take the door on the left, then exit the next room bottom right.
3. Follow the path to a small room with a vent. Crawl in, take the left fork, and pick up the Worker Access Keycard from the floor near a few enemies.
4. Use it on the door to the left, head back to E-19, and open the main door.

Regroup with the crew and power the Beacon

Through the main door, head down the stairs and interact with the cube device — that’s the Beacon, and activating it completes the first objective. With the Beacon on, head back upstairs and continue north into the Communication Center Control Room and talk to Soldier C-12.

Optional but recommended: scan the Map Station on the left side of the Control Room before leaving — it charts the zone and makes the tower leg much easier to navigate.

Climb the tower and place the Power Converter

The Comms tower puzzle is a fetch loop: find the missing Power Converter, slot it into the red-light conduit, return to C-12.

1. Exit the Control Room through the door on the left — there’s another safe room through here worth using.
2. Head down the stairs behind Soldier O-14 and follow the path until a ladder leads up to 3 Power Conduits. One slot glows red: it’s missing a Power Converter.
3. Take the door to the right of the conduits and continue until you spot a yellow item on the floor of the room below you. Jump down and grab the Power Converter.
4. Return via the door in the bottom left — don’t climb the ladder down; continue left, through the door, and back up the ladder to the conduits. Slot the converter into the red-light position.
5. Head back to the Control Room (down the conduit ladder, right, down two ladders, onto the lift) and report to C-12.

Open the shuttle corridor

Back in the Habitation Sector, a jump through an open window leads to the PC that unlocks the shuttle entrance — and the room also hides the game’s second weapon.

1. From the Control Room, go south into the Habitation Sector and take the door on the left in the corridor.
2. In the corridor south of Security, look for an open window on your right — vault through it.
3. Grab the Riot Breaker shotgun lying in plain sight in this room — it’s the best crowd-control tool in the early game.
4. Interact with the PC at the end of the room to unseal the door on the right side of the main corridor.

Boss: Husk Cluster

Through the new door waits the Husk Cluster — a swarm-spawning mass of fused bodies. It periodically ejects smaller Husks that chase you, so the fight is about thinning adds before they surround you.

• Keep moving and dodge-roll through lunges; the Cluster telegraphs its slam with a rear-up.
• The Riot Breaker you just picked up chews through both the adds and the boss — don’t save shells for later, this is what they’re for.
• Full strategy and stats: all bosses.

Ride the Shuttle to Factory East

After the fight, continue right and activate the Shuttle — the game’s fast-travel network. Shuttles connect the major zones once powered, and this first one carries you to Factory East, where Part 2 begins at the Reactor.

Collectible note: the Habitation Sector hides several logbook notes and, much later, a Data Shard and an Energy Cell behind keycards you won’t have for hours — tag the locked doors with your scanner now so the map remembers them.