Skool Daze

Skool Daze is an action-adventure game released by Microsphere in 1984 for the ZX Spectrum and ported to the Commodore 64 the following year. It was written by David Reidy (whose wife, Helen, was a school teacher at the time) with graphics designed by Keith Warrington. The game was commercially and critically successful, and praised for its original concept. It has since been regarded as one of the pioneers of the open world sandbox game genre.