Documentation:World Tiers

A world tier is a way of classifying Uniplex worlds based on their significance. The tiers that exist are:
Tier A: A major world that is an important part of Uniplex. Uses a 2-digit ID code, and therefore there are 100 slots available, >1? of which are in use. (list)
Tier B: A semi-important world. Uses a 3-digit ID code, and therefore there are 1000 slots available, >1? of which are in use. (list)
Tier C: A smaller, extension world. Uses a 4-digit ID code, so there are 10,000 slots available, 1 of which is in use. (list)