Wall

Wall segments can be constructed using either the room tool or the wall tool and are used to separate rooms as well as keep Oxygen and Citizens inside your base.

Doors may be placed on top of walls.

Many Objects can only be constructed on either the south-east or south-west side of a wall segment.

Walls come with built in vents, allowing Oxygen to flow through wall tiles between any two connected, unlocked rooms.(Any room considered "in space" is automatically locked.)

Wall segments can be demolished for 6 matter each, recouping their original cost.

Bugs/Exploits

 * currently walls are less expensive than flooring, even though that walls get a free floor placed beneath them when first constructed. This makes it actually more economical to build walls everywhere and then demolish them while you are expanding.