(In red): These maps are each the only possible map you can be sent to when their respective offering is burned. (In blue): These maps are one of two possibilities when their respective offerings are burned. The chances of arriving on the maps in red are over twice as high as landing on a map in blue. This relationship is shown to be roughly proportional to the number of maps a player can be sent to when the respective offering is burned and is demonstrated further in the other screenshots. It's notable that the offering is the unifying element here instead of the true listed realm, as both Toba Landing and Nostromo Wreckage are on the same realm, but don't share an offering and we see them both treated here as though they were a single-map realm.