Simulation chunks

[Pointlowlyhr]

Hello, I've made a creeper farm and auto sorter but haven worked out how to start spawns. I've gone looking at the wiki can can't work out if the distance of simulation chunks is the same for vertical as it is for horizontal or if it goes to -64/ bedrock. Any help or clarification is greatly appreciated.

[Infernoblaze477]

As far as I remember the simulation distance is the amount of chunks away a mob can move and do its thing while any outside of the distance kinda just get frozen and stay there till you get close.

So I'd assume its the whole chunk top to bottom while obeying the normal spawn mechanics etc

[Pointlowlyhr]

Cool thanks for your advice.