I wanted to build an OGame Death Star model in Minecraft, and I started doing it on the highest mountain I could find, for some reason… I built one third of it and blam, can't build any further! Why is that? Or is that a bug?
Minecraft – maximum building height in Minecraft, and why
minecraft-java-edition
Related Solutions
I'm having no trouble doing this in single player:
What's your difficulty? If it's peaceful, then all mobs will despawn instantly.
This is caused by the spawning algorithm. On the ocean, there are significantly less areas suitable for spawning. When you build a house over/on the ocean, you provide a large suitable area for them to spawn in, and because it is the only one in the area, everything that would normally be spread out around there instead spawns inside your house.
Best Answer
Yes
The Minecraft world is 256 blocks (as of Minecraft 1.2) from top to bottom. The reason for the height restriction is that the Minecraft world is made of 16x16x256 'chunks'. These are loaded into memory and rendered starting with the ones closest to the player. A 3D world of chunks (where the world is 'infinite' vertically as well as horizontally) is a whole lot more complex than a 2D world of chunks to manage, and optimizing for smooth gameplay would be a challenge. 256 is a convenient number that's a power of 2 (making it align nicely in memory).
Note that there is also a separate build height on servers. In the
server.propertiesfile, there is a propertymax-build-heightwhich defaults to 256. Server admins can lower this value to prevent players placing blocks above a certain height, but it will not prevent natural terrain from spawning above this level, or players climbing natural structures above this height.Although it is theoretically possible for a mod to increase the height limit of the map, I can't find any that work with the current version of Minecraft or are in active development.