Construction specialist: Bio-Dome & Standing Planter & Cuboid Room Frame & Glass Cuboid Room & Cuboid Inner Door & Cuboid Roof Cap & Curved Cuboid Wall & Interior Stairs & Cuboid Inner Wall & Curved Cuboid Roof & Holo-Door & Health Station & Cylindrical Room Frame & Hazard Protection Unit & Viewing Sphere & Infrastructure Ladder & Blue Light & Green Light & Pink Light & Red Light & White Light & Yellow Light

Unlocks Bio-Dome, Standing Planter, Cuboid Room Frame, Glass Cuboid Room, Cuboid Inner Door, Cuboid Roof Cap, Curved Cuboid Wall, Interior Stairs, Cuboid Inner Wall, Curved Cuboid Roof, Holo-Door, Health Station, Cylindrical Room Frame, Hazard Protection Unit, Viewing Sphere, Infrastructure Ladder, Blue Light, Green Light, Pink Light, Red Light, White Light, Yellow Light through the construction specialist progression.