List of Rooms in Sector 4
- Aquarium Hub
- Aquarium Hub Access
- Aquarium Kago Storage
- Aquarium Pirate Tank
- Aquarium Save Room East
- Aquarium Save Room West
- Aquarium Shaft
- Aquarium Speedway
- Breeding Tank
- Breeding Tank Access
- Bridge Access
- Bridge Save Room
- Broken Bridge
- C-Cache
- Cargo Hold to Sector 5 (ARC)
- Cheddar Bay
- Data Room
- Drain Pipe
- Entrance Lobby
- Entrance Navigation Room
- Entrance Recharge Room
- Entrance Save Room
- Evir Enclosure
- Glass Tube to Sector 2 (TRO)
- Glass Tube to Sector 6 (NOC)
- Hideout
- Level 4 Security Room
- Owtch Atrium
- Powamp Playhouse
- Powamp Shaft
- Pump Control Access
- Pump Control Save Room
- Pump Control Unit
- Reservoir East
- Reservoir Save Room
- Reservoir Vault
- Reservoir West
- Sanctuary Cache
- Sciser Sanctuary
- Sciser Stall
- Sector 4 (AQA) Entrance Elevator
- Security Access
- Security Bypass
- Serris Arena
- Serris Speedway
- Skultera Cisterns
- Waterway
- Yard Firing Range