The Enchanted Cave by Dustin Auxier was a free flash game and a paid mobile game where you play an adventurer exploring a mysterious cave full of monsters, gold, weapons and the occasional rare artefact. The aim being to push your luck, get as far as you can but stop before you die.
The Enchanted Cave 2 is very much in the same vein, except prettier, bigger and with a lot more story. I especially like the town which is a bit more dynamic than I expected. It really sells the idea of this cave as a tourist attraction, leaving it up to the player to actually explore the cave and find out why it exists. I doubt that it is just the fantasy equivalent of the World’s Largest Banana.