3D Maze (MSX BASIC)

Originally started in 1985 as a technical exercise, this sat abandoned for 35 years before being re-developed into a simple maze game in 2020. It is not the fasted program in the world (due to 95% of the code being written in MSX BASIC) and there are no monsters - all you have to do is escape each of the 32 levels in under 1000 moves.