How do you build it?
Unlock it, gather the listed materials, select it in the Build menu and complete the required construction work.
Building
A triangular foundation for building walls or facilities on. Made of industrial-strength glass, it's quite sturdy.

Unlock it, gather the listed materials, select it in the Build menu and complete the required construction work.
A triangular foundation for building walls or facilities on. Made of industrial-strength glass, it's quite sturdy.