The Sunari Wilderness
The War of Magic. The Worldrend. Countless attempts at releasing imprisoned gods and unleashing demon hordes, at tearing through the fabric of the material plane, at bringing necromantic armies into existence. Divine rituals, arcane summons, alchemical explosions. No act is without consequence. The Sunari Wilderness is the physical representation of these consequences: a seemingly endless desert where magic runs wild. The usual universal constants don't seem so sure there: gravity alters randomly, time seems to stretch, then hasten, magic itself seems to stutter to a halt... or exaggerate itself to ridiculous quantities. Divine faith seems weaker here in most cases, particularly to Lawful deities - worshippers of Chaotic deities have less issue. Fey scholars have likened it to the First World, if the First World were to bleed onto the material plane and find itself corrupted by dark energies. Great beasts, warped by the sands of the enormous desert, prowl the Wilderness, hunting down those fool enough to try to brave it. Tribal communities of any race imaginable form and wage war upon each other, harnessing the chaos by fully embracing it. It still claims them, in the end. It always does.
Sand. Endless sand. Improbable mountains that jut from below, twisted into crystals of a million colours. Floating masses of sand and ice, sand and rock, sand and earth. Rivers that flow upside-down with saltwater that evaporates to a shower of salt. Bursts of corrupted lava that crystallise, claiming passers-by. The ruins of beautiful ancient temples, shrouded in sands and withering ivy, slowly disappearing beneath the earth into the tumultuous caverns below...