The Building Plan is used to create weak twig structures at the cost of a nominal amount of wood. These twigs may be upgraded with a Hammer if the player has the resources to do so. Players may not build in zones in which there is a tool cupboard that they are not authorized on. Additionally, players may not build in certain areas of the map (such as near a radtown). Otherwise, players may build anywhere of their choosing.
|U Shaped Stairs||Twigs|
|Stairs L Shape||Twigs|