Minecraft: How to build/make a custom single player world.
Since I showed how to connect to multiplayer servers I recently decided to go ahead and make a tutorial on making a custom world for offline use.
So the first thing is to click 'Singleplayer'
then from there, click 'Create New World'
from there Select where it says "New World" that would be your worlds name, change it to what you want your world to be called.
Game Mode: Survival, Hardcore, Creative
Survival = 20 Hitpoints (Life) With hunger.
Hardcore = 2 Hitpoints (Life) With hunger AND Zombies can break Wooden Doors.
Creative = Infinitive Hitpoints No hunger AND Instant Block Breakage.
then 'Create New World' and good luck.