Gazz
Fun Pimps Staff
What about a granite layer that is two blocks thick between dirt and stone and SI is only calculated to Granite instead of all the way to bedrock? Then you could have as many caves and caverns below granite and it wouldn't mess with any surface structures? You could also use it as a gate for deep mining if granite could only be destroyed with a steel pickaxe? Then the only SI issues would be any tunnels dug above granite and those spots where a player punched through it to go deeper.
That was the first thing I thought of. =)Hanging bases. Now I think you just gave me a better immune base than we had before.
Cut out a slab of granite, clear 5 or 6 blocks below it, add a moat maybe 6 wide, live on your floating rock.
Zombies? What zombies?