Albedo's conversation with Momonga at the beginning of episode 5 has a few elements that confuse me. Albedo reports to him that they have yet to find any other "Yggdrasil players". Later, Momonga tells her that her love for him is a result of him messing with the "settings" Tabula specified for her.
Does this mean that Albedo is aware that her entire world used to be just a video game from Momonga's perspective? Did Momonga tell her this, or did she inherently have this knowledge from the very beginning (i.e. when Momonga got transferred into the game world)? Do Albedo (and the other underlings?) just not care about this?