Assassin's Creed Odyssey cultists - all the Cult of Kosmos locations | Rock Paper Shotgun
Hit level 50 by mostly doing side content/cultist hunting (haven't even begun the finding mother quest yet); this game has surpsingly good & engaging side missions : r/AssassinsCreedOdyssey
Cult of Kosmos - Cultist Locations and Spear Upgrades Guide - Assassin's Creed Odyssey Guide - IGN