d30 feature is part of the ever-updated-and-slowly-but-surely-going d30 Sandbox Companion. This page of 4 charts creates the following type of city encounters:
1) Unprovoked attacks: misunderstandings, malevolence, and mental impairment
2) Annoying encounters: from beggars & buffoons to prostitutes & performers
3) Criminal solicitations: guaranteed to get your PCs in trouble!*
4) Festivals and celebrations: game, political, popular, and religious
To download a free PDF of these d30 City Encounters charts from MediaFire, click here.
* The management wishes to express this in no way is a certified guarantee of any sort.