Maxis, a computer game company residing in Walnut Creek, California. Maxis is famous for the #1 PC Game of all time, The Sims. They have also released the SimCity series, and several other smaller games like SimLife, SimCopter, Streets of SimCity, among others. Electronic Arts took over Maxis in 1997, and were partly responsible for the reason why no other smaller Sim titles have been released recently. Maxis was originally owned by Will Wright, who created SimCity Classic.
I'll go play SimCity 4 by Maxis.