>>100219676More or less, you have it backwards: foggernauts are sufokians.
Sufokia was a very advanced culture built on top of Eliatrope ruins, but they were flooded. They survived underwater thanks to their technology, and only some ruins of their culture stayed on the surface.
Sufokians from "Old Sufokia" (the underwater one) had already come back to the surface by the Dofus MMO era, under the name of foggernauts, but they were still humans. They worshipped Oktapodas and used technomancy, summoning turrets and gadgets.
During the Ogrest's Chaos they were forced to go back underwater. But many people weren't happy with that, and claimed that Oktapodas had abandoned them, one of them being Merkator (the lead sufokian scientist). In order to be able to go back to the surface he designed a way to transfer his soul into a stasis android, and other sufokians followed through. The royal family considered this to be blasphemy, and claimed that they would never turn their bodies into machines. Civil war sprung between the "sufokians", followers of Oktapodas with human bodies, and "foggernauts", atheist androids with souls.
By the time of the Wakfu era the situation has calmed down and some foggernauts rise the surface to scout (those are the playable foggers). Some time later, the Sufokians decide it's time to come back too and the ending of Wakfu S2 happens. We learn that the royal family (or at least Prince Adale) is now atheist too, although they still apparently refuse to turn their bodies into machines.
