A survival world with a lifeboat.
Good Luck!
Challenges
1. Make a Cobblestone Generator
2. Make a Sapling Farm
3. Make a Carrot, Wheat, Melon, and Potato Farm
4. Cook a fish
5. Make a piece of TNT.
6. Reach the Ocean Bottom (It is Possible)
7. Mine all the ores.
8. Find the 4 legendary gravel pieces.
9. Conquer and activate the nether portal.
10. Mine the 4 pieces of Soul Sand
11. Create a Wither
12. Defeat the Wither
Rules:
1. Don't break any redstone.
2. Don't Steal anything out of dispensers
3. Don't Hack or Cheat
4. Play on Easy, Medium, or Hard
Hints
The Gravel Pieces are somewhat near the area below the lifeboat (ocean floor).
Be prepared before jumping down into the hole where the nether portal is!
Have a stable platform on which to stand when fighting the wither!

Additional Notes

Have Fun!
Please Enjoy!