Board Thread:General Discussion/@comment-98.80.243.13-20130207011434/@comment-71.61.185.248-20130312224856

It would work fine if minecraft was in C++ or some performance heavy language. Unfortunately its in Java wich is interpurated ontop of the java runtime environment so it would become VERY laggy. However If you or someone had the time it would be possible to make minecraft load chunks on the z axis or (in minecraft the y) so it would load the lower level when the player enters its range and derender when they exit. This would allow for a working underworld.