Firstly, my apologies if this, or something similar, has been asked before. I did do a search but couldn’t find anything close to what I’m after. Basically I’d like a mod that move the entire map down a set number of blocks, 32 in my case, so sea level is much lower than normal. It would also have to replace the lowest row with Bedrock so as to fix any holes that appear due to dungeon caves going deep. I realise this would effectively remove the ores from the lower levels, making diamond's, Redstone and Lapis harder to find. But it would allow players to build huge skyscrapers, or castles on top of cliffs without worrying about being too close to the sky limit. I know there is a plug-in out there called SphereWorld that changes the way a map is generated ( or at least I believe it does, may modify it after ) so perhaps it's possible. Thanks in advance if anyone can do this, or even post any info to a plug-in that does this or something similar.