Cavelon

Gather up all the pieces to escape the castle then battle the dark wizard. Use the Magic Sword to destroy all enemies on the screen. Grab the floating sword to get a second Magic Sword in the same level.

In this horizontally-scrolling maze game, You the heroic knight must reach the top floor of Castle Cavelon, rescue a fair maiden and do battle with the Black Wizard! Armed with bow and arrow and a magic sword, you must avoid or kill the castle security guards while collecting the 8 pieces of the exit door that are scattered around the corridors, in order to proceed to the next floor.

While this game wasn’t massively popular, it did have a cult following in Europe, particularly in the UK. It even got ported to most of the popular 8-bit microcomputers such as the ZX Spectrum and C64 at the time.