This map is freely inspired by Skyblock. The basic idea is, you are on a large Grass Block floating in the sky.

This map contains: 25 challenges, A Zombie dungeon, Some ores in the Grass Block, 3 Mob Spawners in the Nether, a Nether Block, and some treasure chests. Your main objective is to survive.

Rules:
1: Never play on peaceful (Hard is recommended).
2: Don't cheat. (this includes using commands, hacking in items, changing gamemode, etc.)

Additional Notes

The 25 Challenges: (also listed in a book on the grass block)
1: Make an infinite water source.
2: Build a Cobble Stone generator.
3: Build a House.
4: Build a Zombie Grinder.
5: Craft full Iron Armor and Tools.
6: Visit the Nether.
7: Build a Melon farm.
8: Build a Wheat farm.
9: Build a Carrot farm.
10: Build a Potato farm.
11: Build a Pumpkin farm.
12: Build a Sugarcane farm.
13: Build a Cactus farm.
14: Breed Cows.
15: Breed Chickens.
16: Breed Pigs.
17: Breed Sheep.
18: Craft a Bed.
19: Craft Mushroom Stew.
20: Go fishing.
21: Make a Cocoa Bean farm.
22: Breed Mooshrooms.
23: Make a Snow farm.
24: Make a Nether Wart farm.
25: Brew some Potions.