I have gone ahead and made an adventure map that I'd like to see tested out. There are so far six challenges, two more are coming, I just haven't had time to include them yet.
So the idea behind the adventure map is to loot everything from one challenge and move to the next because what you loot will be needed in the next challenge or challenges to come. By the end, sadly you will verse the Wither, the eighth challenge. Couldn't really think away around that because I'm not great with redstone dust. Plus this is my first adventure map.
Anyway here are the screenshots that I'll show you to peak interest...oh and this map is completely meant for two people.