Nick Marentes just released a new game called Gem Hunter. Nick writes:
You are the Gem Hunter and you must go down a deep underground cavern, riding platforms and collecting as many gems along the way to achieve the high score.
But don’t stray too far out of view or you will be lost in the cavern forever!
You can see gameplay on Youtube.
For purchasing information go to https://nickmarentes.com/ProjectArchive/gemhunter.html.