1-4 Players. The BGG Link is here. I hadn't planned on getting this game, but I had a years-old credit (for an unfulfilled order) at a store that wouldn't give me my money back for the unfulfilled (and subsequently canceled by me) order. They would only give me store credit, but it seemed like they never had anything I really wanted. Since I've been trying to scale back my 'games expansion', I wanted to use this credit before the end of the year and just get it behind me. Anyway, I finally settled for this game, as it was the most appealing one they had that roughly matched my credit value. The layout below is recommended for your first game. There's a 'dungeon book', which is separate from the Rulebook, that has 20 different layouts (each with different Special Rules), corresponding to various difficulty levels. Plus, there's also an additional mechanism that's separate from the tile layout, to adjust the difficulty. I've only taken one turn so far. My hand of cards and the Rulebook are on a nearby TV tray.
There's even a flowchart:
Here's Layout #15 (randomly chosen):
I also had the game on my wishlist at one point, but the playthroughs I saw didn't really convince me.