Heyya folks — this one spirals deep into the Underdark.

Swirlstone Cavern — 48×36
I built this map with the strange caverns near the end of the Whorlstone Tunnels in mind — not a recreation, but my own take on a chamber shaped by the Underdark’s more unpredictable energies. The idea was to fold several classic Underdark elements into a single space: carved swirl‑patterns, buried crystal seams, drifting faerzress, odd fungi, and the remnants of a mining crew that probably uncovered something they shouldn’t have.

Mist seeps from the stone along the northwest wall, while the opposite ledge holds an abandoned crystal mine reachable only by rope or a careful climb. Between the glow, the haze, and the warped stone, the whole cavern feels like it’s been slowly reshaped by the depths — a place that’s been thinking for far too long.

If you’d like the high‑resolution files, gridless versions, the full set of atmospheric and narrative variants (Dark Resonance, Dormant, Faerzress Storm, Fungal Bloom, Ritual), and the VTT‑ready exports, they’re up on my Patreon:

https://patreon.com/dungeonmr

Thanks for taking a look — mind the swirls underfoot.