Where Do Mobs Spawn in Minecraft?
Mobs Spawn Naturally Within a Square Group of Chunks Centered on the Player, 15×15 Chunks (240×240 Blocks). When There Are Multiple Players, Mobs Can Spawn...
Mobs spawn naturally within a square group of chunks centered on the player, 15×15 chunks (240×240 blocks). When there are multiple players, mobs can spawn within the given distance of any of them.
What can mobs not spawn on?
Most mobs never spawn on transparent blocks, in water (except fish, dolphins, turtles, and other aquatic creatures), in lava (except for striders), on bedrock, or on blocks less than a full block tall (such as slabs placed on the bottom half).
How far do mobs spawn from player?
Hostile Mobs
Mob spawning in Minecraft is limited to a 128 blocks distance from a player. Experienced Minecraft players create large, efficient farms in a sphere of 128 blocks radius.