Please read more
I didn't come up with this idea, I got it from somebody else and thought it was cool
The rules are simple:
1. Don't leave the Island.
2. Play on at least Normal difficulty.
3. Bookmark the thread if you find it interesting.
4. Post pictures of your achievements.
5. No hacking.
6. Have fun !
The challenges:
1. Build a two story house/base with at least 20+ windows.
2. Build 10 bookcases.
3. Build an automated cactus farm.
4. Build an under ground tree farm.
5. Build an above ground animal trap.
6. Build a drowning trap around the skeleton spawner.
7. Build a cart system.
8. Build something with redstone.
9. Gather 10 unused diamonds.
10. Find the treasure left behind by the Lost Curator.
Forum thread here: http://www.minecraftforum.net/viewtopic.php?f=1020&t=117731