Deliverance

Deliverance was an early game of mine; effectively a precursor to MARDEK. It’s sloppily made and poorly-written, in my opinion, and was abandoned a long time ago, unfinished.
Still, if you’re interested, it contains many of the features that the original MARDEK games had (since MARDEK was based directly on Deliverance’s code), as well as allowing you to create your own custom player character.
There are about 6 hours of play time in it, but then you come to an abrupt stop when there’s just not any more to play, so prepare to be disappointed!