Title is misleading. From what I saw of Bit Dungeon on YT, it's not a point and click adventure, not that that matters. Are the enemies random on each screen? An array would be used for each "screen", connecting the doors etc. The enemies, if random, would probably be spawned based on your current level. It could be procedurally generated to an extent.
Ugh I'm still tripping out over my WTF post. hmmm I wonder what they put in my pizza 'cause it's only been since I had that!