Stopping monsters from coming out of ground

Answer from: ryden
I know that lights and lantern's help to prevent them from spawning off the ground but never make the floor itself from lantern's their even more vulnerable to dragon breath attacks than rocks are. I recommend encasing the area beneath the lanterns in iron wall's or copper walls. But preferably iron. the best thing to do is cover the ceilling and put another layer above the lantern's on the house.

Answer from: Castle miner z
I agree making iron walls and floors help and keep moving around ur house so they don't spawn on u

Answer from: Digitaldnagames
I would just light up the desired area with torches or lanterns and that should usually stop the spawning but does not have protection from dragons.

Answer from: Darth Xalex
Well i usely make my floors out of an ore, and then dig a 2 block area under it so the monsters spawn below the ore and not ontop of it

Answer from: dragon5
Just make your walls/floors iron

Answer from: SRG ProSUPERMAN
Well I agree iron is the best but if you dont have a ceiling they'll still spawn there no matter the lanterns torchs or floor is made of

Answer from: XI MUT4T3D Xi
Torches attract the zombies. If the difficulty is hard, hardcore, dragons can ripe through sand, zombies don't get attached to the lanterns.