Mob Cap. Each mob category has a separate cap and a different constant. Hostiles can have up to 70 mobs, passives up to 10, ambients/bats up to 15 mobs and water/squid mobs up to a maximum of 5.

Do animals take up the mob cap?

No having animals nearby will not limit your hostile mob spawns, passive mobs and hostile mobs have separate spawn caps.

Is bat a hostile mob?

1 Answer. No, bats are considered a passive mob. They won't harm you, ever.