The right to build on land cannot be bought. It can only be given, or taken and defended.

A team of three tunnel diggers can excavate one 6" cube of soil per day. Other materials take twice as long.

Rooms can be of any size — the following is the cost of materials and fittings per 6" cube constructed. Labourers and diggers must be paid separately.

Room	Cost
Tunnel, per 6"	10p
Poor room, per 6" cube	100p
Standard room, per 6" cube	500p
Grand room, per 6" cube	2000p

All constructions require an upkeep of 1% of the total cost per month.