The Sodatic Cults refer to an assemblage of diverse religious groups in the North American Outlands who hold a special reverence for any of various sweet fizzy drinks that were popular worldwide in the 20th-21st centuries. Since most sodas required complex industrial processes to manufacture, only 1-2% of groups had the means or knowledge to recreate their Ritual Soda. Most lacked even the literacy to preserve the name of the original brand.
Most Sodatic Cults arose from small clusters of famine survivors who subsisted on the pure energy of sugar and all kinds of bullshit. In many of these societies, Hiafruqtoskornserup and Quafín are words for their two forms of atheistic manna, a vital sugar provided by a trusted mother machine un-god that imbues these ritual sodas with their power.
Since most of the cults lacked the means to reproduce their holy soda, accrual and hoarding was their only recourse. Countless small wars were fought over a dusty pallet of Pixie-Cola.
When a Sodatic Cult runs out of their supply of holy soda, they reach a crisis point. The worst scenario is called a Sodapocalyptic Spiral, which frequently results in tribe-level annihilation of the cult itself or as many of its neighbors as it can manage. They also get headaches because they're used to having the sugar and caffeine right after lunch, but they've been dragging for like the whole past week, which is bad too so it's not like they have it easy.