So, my multiplayer is usually home to me and a few mates, and we generally do a lot of exploring, and a lot of building and we end up with a rather large world that tends to lag once it gets big enough, seeing as though its only hosted on my home computer, so I was doing some brain storming with one of my said friends not too long ago, and we came up with a bit of a solution, which I'll summarise into the below dot points. Regions "expire" After x Days, the regions are marked as inactive, and are "archived" or deleted When a region is archived, players can vote to bring the region back, hence the importance of a region name, and a human-readable date/time code When a region is deleted, it is permanently deleted (perhaps archived then deleted after x days (perhaps a month of residing in the archives?) A region maintains its "active" flag via players entering/exiting the region, if a player hasn't entered/exited a region for x days, then the region is processed for archiving/deletion. The code should include admin tools to allow simple-region names, as well as controls to archive/delete/restore regions. A nice future feature would be the ability to have a sign before the region stating the name of the region and when it was archived, so players are able to vote for the restoration of the region.