I had a go at this last week, and succeeded! Or at least it felt like I did. I think I've managed to remove all the showstopper bugs now, so behold The Caverns of Shrug! Play it in yer browser at www.unusualcadence.com
It's a sort of action-shooter variant on the roguelike, with the usual trappings wrapped in a real-time adventure duvet. Levels are randomly generated, you can level up your stats at spawn points and merchants, grab loot, kill wildlife, die to unfair traps, etc etc.
The goal is to get through 50 levels and retrieve the Power of Shrug, whatever that is. This is technically and functionally possible, but I haven't actually managed to do this yet. The balancing of XP growth, baddie growth and all that jazz was total 'best guess' terratory, so I guess I'll poke this a bit depending on if people play it, have fun, and want it to be funner!
That number to dial: www.unusualcadence.com