A copy of the TRS-80 classic "Cavern Quest" by Barry Diller (1982). I've kept the old-fashioned low-res black and white graphics. Should I design some colourful graphics, and switch between them with a press of a button?
If you want to play Cavern Quest, it is included as a demo game within my game engine Itchy.
Cavern Quest was one of those games I dearly remember as a child. I think I finished it, but never mastered it. To mimic the "nasties" behaviour, and to copy the scene, I had to play the original in an emulator (as my TRS-80 stopped working many years ago). The emulation was just as I remembered, including the unresponsiveness of the keyboard. I genuinely don't know how to emulate such unresponsiveness, and my version is much easier to play as a result!
Unlike the original, the characters glide gracefully, rather than jump from one grid position to another. I may add other modern touches too. Maybe a shocking splash of colour when you finish the level?