Subnautica 2 Base Planner
Drag rooms onto the grid to plan your seabase layout. Calculate total materials and avoid building mistakes before you dive.
Room Palette
Foundation
Base structural support. Place first.
I-Corridor
Straight connector between rooms.
T-Corridor
Three-way junction.
X-Corridor
Four-way junction.
Multipurpose Room
Main habitable compartment.
Observatory
Glass dome with 360° view.
Scanner Room
Detects nearby resources.
Moonpool
Docking bay for Seamoth/Prawn.
Nuclear Reactor
High-output power generation.
Thermal Plant
Power from nearby heat vents.
💡 Tap a room, then tap a grid cell to place it. On desktop, drag and drop.
Selected Room
Click or tap a placed room to select, rotate, or delete it.
Total Materials
Place rooms to see material costs.
Layout Actions
0 rooms placed