Facility housing assessment

Best Abiotic Factor Base Locations

Compare the safest early bases, central tram hubs, midgame laboratories, late-game homes and Portal World outposts.

Best overall: Security RoomSafest early: Elevator RoomBest group base: Waterfall Apartments

Best Overall

Office Security Room

Protection and amenities

Best Early

Office Elevator Room

Safety and central travel

Best Midgame

Aquarium Offices

Space, water and tram

Best Late game

Power Services

A complete living space

Ranked locations

Choose by progression stage

The best location is the one that matches your current routes, equipment and group size.

01
Best overallEarly

Office Security Room

Office Sector

S Tier

A secure, amenity-rich base that can remain useful for the entire game. Repairing the shutter controller creates an exceptionally strong physical barrier.

space
safety
travel
utilities

Advantages

  • Repairable powered shutters
  • Several outlets and an indoor charging station
  • Bathroom, lockers, coffee and nearby shooting range
  • Zipline access toward Manufacturing

Limitations

  • Unavailable before Hacker Tier 1
  • More walking than the central lobby
  • Shutters do not replace Portal Storm suppression

Requirement: Keypad Hacker Tier 1

How to find it: From the Office Sector elevator area, continue toward the Security Office and hack the entrance.

02
Best midgameMidgame

Aquarium Offices

Cascade Laboratories

S Tier

One of the largest practical bases in the game, with fishing, water, tram access and enough room for advanced crafting or a full multiplayer team.

space
safety
travel
utilities

Advantages

  • Huge upper floor with expansion offices
  • Aquarium supplies fish and tainted water
  • Bathrooms nearby
  • Labs tram connects back to the Office Plaza

Limitations

  • Initial Pests must be cleared
  • Containment Bot requires traps or caution
  • Bathrooms are downstairs

Requirement: Reach the Laboratories

How to find it: At the aquarium, find the stairs across from the nearby bathrooms and Containment Bot area. The large upper floor is the recommended build space.

03
Best late-gameLate

Power Services Living Area

Reactors

S Tier

A late-game base that already feels like a home, with bedrooms, a kitchen, bathrooms, farming space, water and a tram connection.

space
safety
travel
utilities

Advantages

  • Dedicated kitchen, bedrooms and bathrooms
  • Infinite tainted-water source
  • Outdoor growing area
  • Tram and portal access

Limitations

  • Only a few sockets, so Plug Strips matter
  • Portal assaults approach through the tram area
  • Limited for a very large group

Requirement: Reach Power Services

How to find it: Explore the home-like living section in Power Services near its tram area and central structure.

04
Safest early baseEarly

Office Elevator Room

Office Sector

A Tier

An elevated base close to the central facility routes. Most ordinary enemies cannot reach it, making it especially comfortable for solo players.

space
safety
travel
utilities

Advantages

  • Enemies struggle with ladder access
  • Close to the Main Lobby
  • Several outlets and generous room
  • Charging station and Biolabs nearby

Limitations

  • Requires Hacker Tier 1
  • Ladder access is awkward for furniture
  • Portal assaults can still occur

Requirement: Keypad Hacker Tier 1

How to find it: Face the Office Sector elevator used for Silo 3, continue left, unlock the room and climb into the elevated space.

05
Best for groupsLate

Waterfall Apartments

Hydroplant

A Tier

A huge, comfortable complex with specialized rooms, a full kitchen and renewable water. Late-game teleporters eliminate most of its travel disadvantage.

space
safety
travel
utilities

Advantages

  • Multiple floors and rooms
  • Large kitchen with many stovetops
  • Bathrooms, sinks and a water fountain
  • Excellent room for portals and decoration

Limitations

  • Deep, initially complicated route
  • Excessive space for some solo players
  • Best only after fast travel improves

Requirement: Reach Hydroplant apartments

How to find it: Progress through Hydroplant until reaching the apartment complex around the waterfall and residential gym.

06
Best immediate baseEarly

Cafeteria

Office Sector

A Tier

The easiest place to establish your first bed and Crafting Bench. It offers cooking, bathrooms, vending machines and an early route to the Anvil.

space
safety
travel
utilities

Advantages

  • Available immediately
  • Built-in stove, pan and vending machines
  • Bathrooms and refillable sinks
  • Night vent route leads to an Anvil

Limitations

  • Only one built-in stovetop
  • Open layout
  • Less convenient as progression moves outward

Requirement: None

How to find it: Build directly in the opening cafeteria or use the smaller Security Room beside its kitchen.

07
Best starter upgradeEarly

Office Gym

Office Sector

A Tier

A simple first-night location with a defensible approach, nearby bathroom and immediate access to the pool for water.

space
safety
travel
utilities

Advantages

  • Mostly one approach to defend
  • Pool provides fishing and tainted water
  • Bathroom and sinks downstairs
  • Good Office Sector access

Limitations

  • Limited building space
  • More exposed than locked offices
  • Better locations open after Hacker Tier 1

Requirement: Enter the Office Sector

How to find it: From the Office Sector entrance, pass the kitchenette and locker room, then climb the stairs above the gym.

08
Best Manufacturing baseMidgame

Manufacturing Tram Station

Manufacturing West

A Tier

The most useful Manufacturing home, combining tram travel, a bathroom and renewable Train supplies in one defensible logistics hub.

space
safety
travel
utilities

Advantages

  • Tram back to the Office Plaza
  • The Train portal nearby
  • Bathroom access
  • Two outlets can support overlapping benches

Limitations

  • Requires progression and a Tram Station Key
  • Industrial rather than comfortable
  • Needs careful Bench placement

Requirement: Unlock the tram station

How to find it: Use the Manufacturing tram line leading near The Train portal and claim the station interior.

09
Best central baseEarly

Main Lobby Tram Platform

Office Sector

B Tier

A small logistics base positioned beside the facility's major tram routes. It trades living space for exceptional convenience.

space
safety
travel
utilities

Advantages

  • Immediate tram access
  • Central facility position
  • Close to cafeteria amenities
  • Easy to revisit throughout progression

Limitations

  • Only one socket
  • Small build area
  • Exposed and lacking built-in rooms

Requirement: None

How to find it: Cross to the far side of the tram platform beside the Main Lobby and build around the available socket.

10
Best natural defenseMidgame

Labs Turret Area

Cascade Laboratories

B Tier

Reconfigured turrets fire on hostile targets, creating a uniquely defended base zone with several possible building areas.

space
safety
travel
utilities

Advantages

  • Automated turret protection
  • Large choice of build spaces
  • Excellent assault defense
  • Central to Labs progression

Limitations

  • Requires story progression
  • Uncomfortable environment and corpses
  • Exact safety depends on turret coverage

Requirement: Reconfigure the defensive turrets

How to find it: Claim part of the Laboratories combat area after completing the objective that reconfigures its turrets.

Resource network

Forward bases and Portal World outposts

These locations work best as small staging areas with a Crafting Bench, storage and eventually a Personal Teleporter. Leave before a scheduled Portal World reset so its native resources can refresh.

Above the BlacksmithManufacturingSafe elevated trading outpost near the Forge.
Portal Security RoomManufacturingBathrooms, charging and a later shortcut to Labs.
Flathill Power Cell 2Portal WorldRenewable Power Cell and nearby office materials.
Night Realm PondPortal WorldExclusive fishing and quick access to the throne.
Canaan Far EndPortal WorldReverse-route access to Rigs and Lodestone.
North Pole IglooPortal WorldSafe staging point for coins and Digital Gold materials.
Village Research CampPortal WorldTranscendium, Neutrino Mapper and Power Cell runs.
Furniture Store Upper FloorPortal WorldSafe staging room with two outlets and furniture below.

Optional DLC location

Torii Home World

Torii is the safest purpose-built home available through the Supporter’s Pack. It has no native enemies, the Leyak does not appear, traveling traders can visit, and assault events can be mitigated with Crafting Bench suppression. Only the host needs the DLC in multiplayer.

Requires Hacker Tier 1Peaceful building spaceSupporter’s Pack

Before moving in

What makes a good base?

Power

Count sockets and bring Batteries and Plug Strips.

Water

Prefer refillable sinks, pools, fountains or filter access.

Travel

Trams and teleporters matter more as the facility expands.

Safety

Power the Bench and control approaches with shutters or traps.

Cooking

Look for stovetops or reserve room for a dedicated kitchen.

Food

Fishing and renewable creature spawns improve sustainability.

Amenities

Bathrooms, charging stations and storage reduce routine travel.

Respawns

Bench suppression does not stop every robot or special assault.

Our recommendation

Use the Cafeteria or Office Gym for your first night, move into the Office Elevator Room or Security Room after Hacker Tier 1, then decide whether the Aquarium Offices, Waterfall Apartments or Power Services justify a late-game move. Build small resource outposts rather than hauling your entire base between sectors.