I made a post on the official Minecraft forum that was intended as an idea for the new adventure mode stuff. Alas, it's probably too late, and I'm not sure my idea is what Notch wants. To that end, I've decided to begin production of this as a mod. I have reproduced my original post below as it contains the idea: I am beginning work on this mod now. I will likely need help in the future. I'm a programmer by trade, so I doubt I'll have much trouble with that end of things. I'm looking for creative ideas, and if potentially some artwork resources if we ever get the capability to add new items and monsters to the game without having to require client AND server side mods(I want it to be server only and the data be sent to the clients.) I'll be watching this thread for ideas and interested parties. Thank you.