So, I wanted to make one of those complex traps that everyone's talking about, so I made a very long corridor, which would push mobs using a river system in the middle, and made a few rooms (2 at the time) and no mobs would spawn. So, I made 5 more rooms, and they still aren't spawning, even though I hear cave noises all the time while working on it. This thing is practically a MOB HOTEL, why aren't they spawning in it? :V
On the wiki, information regarding hostile mobs is in the hostile mobs section, on the "mob' page. It's actually rather simple to navigate there.
In any case, they don't spawn within 24 horizontal or vertical blocks of your character.
They start to disappear 4 chunks away (64 blocks).
So, stay within that specific range and you'll be fine.
This IS single player, I just posted in the wrong place. :V
I'll request for it to be moved.
The rooms are completely dark?
Yes, they are, there are a total of 9 I think, averaging a 4x5x4.
Would you happen to know the range? I tried to look all of this up on the minecraft wiki before I made it, but I couldn't find anything. :C
In any case, they don't spawn within 24 horizontal or vertical blocks of your character.
They start to disappear 4 chunks away (64 blocks).
So, stay within that specific range and you'll be fine.
No... any block will spawn monsters, except glass and halfsteps.