Thurstle Island: The Ancients Themselves

The City of the Ancients forms the main mega-dungeon of my Thurstle Island mini-setting. It is an abandoned alien city inspired by all of the ancient aliens of Lovecraft. In this post, I'll sketch an outline of it's builders.

The Gith

The humans of this world are not special. We are not the only examples of our species. Scattered across the stars, the inverted labyrinths and the manifold planes of the multi-verse, there are many races of men and women. Our origin is further back in infinite history than even the gods remember and many gods share our shape. 

One such race, born among the stars, is the spindle-limbed Gith. They are no less human than us, but their bodies are longer and more fragile and their brains have additional organs that allow them to grapple with the semiotic framework of the world directly. They are less rooted in matter. 

• The Gith, otherwise know as the Greys, are psychic alien humanoids.
• They look like Alberto Giacometti sculptures.

Thurstle Island: Ziggurat of Yog

Another Post-it Map

The landscape of Thurstle Island's City of the Ancients is pierced by many towers. Among these is a sinister 200 meter black stone ziggurat. 

Five layers rise into the sky, and a single steep, narrow stair climbs to the pinnacle. The rise of the steps is much to high for a humans foot, and their breadth is very narrow. There are no railings to prevent a lethal fall. At the top, there is a shrine and a shaft that descends all the way down, through the structure, and into the earth. 

This is a small, fairly linear dungeon with a couple minor fights and some obstacles on the way to meet an Elder God and claim a dubious treasure. It should take about one session to run.

Thurstle Island: Notes on Camp

Birka, a historic viking town restoration

Perched on the edge of the City of the Ancients, Thurstle Island's vikings have established a fortified camp. From this base, they regularly venture into the City's towers and under-structure to plunder powerful artifacts and strange materials. 

Thurstle Island: Oozes of the Undercity

Jared Murphy (King328)

In my Thurstle Island campaign, oozes in their many varieties are the corrupted remnants of the Ancients' servitors. Their minds were poisoned by the malign influence of the Twisted Wyrm, buried nearby. This is not an original idea. It is drawn directly from Lovecraft: 

They had always been controlled through the hypnotic suggestion of the Old Ones, and had modelled their tough plasticity into various useful temporary limbs and organs; but now their self-modelling powers were sometimes exercised independently, and in various imitative forms implanted by past suggestion. They had, it seems, developed a semi-stable brain whose separate and occasionally stubborn volition echoed the will of the Old Ones without always obeying it.

The oozes, slimes and jellies overthrew their creators but lacked the sophistication to form a society of their own. Effectively immortal, they have roamed the decaying city for centuries, some are maddened and consumed with hatred, others are merely bewildered and frustrated.

I don't want oozes to be just another sludgy slurry of hit points. Consequently, ooze-type creatures take no damage from weapon attacks. Deciphering their other vulnerabilities is what makes them fun. Each type of ooze is it's own mini-game.

Oozes do share a few things in common: 

• They hate the cold. It slows their movements and their minds. Even minor chilling magics will dramatically reduce their mobility and power. Freezing an ooze solid then shattering it, is one of the few methods that works on nearly every type.
• They are often disrupted by admixture. Dirt, salt, water. It depends on the variety of ooze what bothers them most.
• They can climb vertical pipes and shafts if the concentration of their bulk is large enough to fill the space. I.e. a 10' Jelly Cube can ascend an 8' wide shaft but not a 15' diameter pipe.
• They can squeeze through cracks and small spaces though the process is usually slow. 
• They cannot cross a grate without dropping through.

Fortunately for the players, rods of ooze control are not too uncommon in the Ancient City.

Thurstle Island: City of the Ancients

The metallic ink just doesn't translate on screen.

The City of the Ancients is Thurstle Island's mega-dungeon. A glaciated urban husk, long abandoned by it's starborne builders. Like an iceberg, the portion visible above the surface is merely a fraction of the whole. 

This is largely inspired by John Arendt's Black City and H.P. Lovecraft's At the Mountain's of Madness (full text). It will also borrow lots of elements from the new edition of Deep Carbon Observatory (incredible, buy immediately) and Roadside Picnic. 

Unlike Cove Town or the Old Forest, I'm not ready to nail down all the specifics yet. I have the skeleton and plan to flesh it out while the players begin their exploration. They'll probably start with one the mini-dungeons (like this or this) anyhow. 

That said, I want to think aloud as I put it together.

Nodes are significant buildings.