Ftb ultimate mob grinder - you., This is a new ftb ultimate mob grinder. using the grinder block, auto-spawner block and conveyor belts. this is a pretty simple version, some more advanced.
Minefactory reloaded - mob grinders & auto-spawners - you., In this block spotlight for the minefactory reloaded mod, i explain how to use the mob grinder and the auto-spawner machines. these are very useful to.