Onírica Mundus Subterraneus Description

A subterranean universe of symbols, terrors, and revelations

Onírica, also known as Mundus Subterraneus, is a nearly infinite universe that unfolds beneath the surface of known reality. It is not merely a hidden world, but a dimensional network of interconnected spaces, linked by cyclopean tunnels, dusty corridors, and impossible structures. It exists both near and far from our reality—like a dream slipping between the folds of time and consciousness.

This subworld is dark, dramatic, and surreal, inhabited by entities that defy logic and form. It is a realm of living ruins, shadowy forests, inverted pyramids, forgotten goddesses, steam-powered machines, disturbed scholars, and disoriented anthropomorphic beings. Everything in Onírica seems to hover between collapse and revelation.

No one has been born, nor will be born, in Mundus Subterraneus… at least, not that we know of. In MS, one only dies, barely survives, or dreams. MS is built upon an intermediate convergence of concatenated worlds; it does not constitute a separate universe, but rather a threshold to other realities. It is a subaltern, parallel, and liminal world—a channel of communication to and from multiple realities, much like the sewers, pathways, and attics of those other worlds.

Onírica is a web of dreams, woven largely within the heart of MS.

Mundus Subterraneus presents an extensive and corporeal reality, but the experience of its living, para-living, and dreaming inhabitants is fundamentally different from that of our “real” world.

Whatever the case, MS is a step in the direction of Onírica. Its archetypes and backgrounds are the same. If my mind has generated these infinite spaces, it is due to the collective historical memory (medieval, a continuation of the ancient high and low empires) that we all carry. A Brunian Ars Memoriae that dwells in the niche of my soul. The magic tomes in MS will be precisely that: Brunian or Lullian arts, Neopythagorean or Neoplatonic in nature.

The RPG tabletop game is called Mundus Subterraneus (abbreviated 'MS'). MS is based on the same world of Onírica's, which means the following: an almost infinite subterranean environment composed of multiple interconnected dimensions that lies near-and-away from our own reality. This obscure and dark mixture of hidden worlds is connected by a net of Cyclopean tunnels, dusty and ghostly corridors made of massive rock from the deeps. Mundus Subterraneus is a gloom world full of dead terrors in the shape of mummies, ruins, inverted pyramids, gigantic mirk woods, forgotten gods and goddesses, black virgins, disoriented anthropomorphic beings, steam machines, dark wizards and troubled scholars, cemeteries, temples and gothic cathedrals and perturbed individuals who try hard to survive in a harsh environment. 

The visual style of Onírica is:

Dark and decadent, with influences from Goya, Zdzisław Beksiński, Remedios Varo, and H.R. Giger.

Surreal and symbolic, where every form suggests multiple meanings.

Dramatic and textured, evoking weight, depth, and mystery.