
Level 1
Level 2
Cost (upgrade from level 1)
Requires2 Outpost rooms installed
Level 3
Cost (upgrade from level 2)
Requires3 Outpost rooms installed
Level 4
Cost (upgrade from level 3)
Requires4 Outpost rooms installed

Requires2 Outpost rooms installed
Requires3 Outpost rooms installed
Requires4 Outpost rooms installed