Crystal Castle

Not to be confused with the 1986 unrelated BBC Micro game "Crystal Castles" from U.S. Gold.

Crystal Castle is a game of adventure and exploration. It has a total of 64 locations, covering the inside and outside of the Castle. The aim of the game is to collect all the crystals that have been strategically placed around the environment. It was written by Graham Nelson, with room design by Adrian Nelson, and additional material by Toby Nelson.

While the game was never officially published, it is available free, courtesy of the dev team, in ssd format suitable for BBC Micro emulation.