Solo players will be able to found Hamlets - which are created as long as a single upkept player house exists in the City Zone - but they will not be towns proper. Hamlets can only become towns proper after having a certain minimum number of players, which is determined by the geographical size of the zone the town is in: 5 for a small zone 10 for a medium zone 20 for a large zone In addition, they have to meet a minimum Prestige level, which is a measure of the town's prosperity. You raise this by upkeeping the town or buying stuff from NPC shops.