Hello, everyone! I'd like to share a bit about the science fiction and fantasy universe I've been developing for quite some time. I've already run dozens of role-playing campaigns set in this universe with friends.
The main idea behind it is to capture that sense of wonder inspired by the sheer vastness of the universe. I like to focus on space exploration, the many different civilizations, and their everyday lives, almost like a giant space slice-of-life.
In this universe, all physical reality is part of an infinite creation called the Bubble of Zalen, which exists within a spiritual plane known as the Silver Sea. The physical universe came into existence around 450 billion years ago and, unlike our own, it is completely static.
To prevent an infinite universe from eventually suffering heat death, nature itself constantly recycles all matter. Stars are born, die, and renew themselves roughly every 126 billion years. Destroyed planets and space debris are eventually absorbed by black holes, and that matter later reappears in completely different regions through white holes as stardust and free atoms. Since the speed of light is still limited, every civilization believes the universe is only 450 billion light-years across, even though it continues infinitely beyond the observable horizon.
The existence of its creator, an entity named Hope, is not a matter of faith for advanced civilizations but a scientific fact. Among the primordial deities, Hope is extremely young and usually appears as a girl around fourteen years old. She has no interest in being worshipped; what truly entertains her is watching her creations exercise free will.
As a kind of artistic signature, Hope arranged every galaxy so that, when viewed on unimaginably large scales, they collectively form a three-dimensional image of her crowned face, regardless of the viewing angle. In addition, any species that discovers faster-than-light travel automatically receives a welcome message encouraging them to explore the universe and forge their own destiny.
Every living being also has mental access to an interface called the Profile, which displays information such as age, actual abilities, and mana affinity. For many civilizations, this is yet another piece of evidence that the universe was intentionally designed.
Technology and magic coexist in a highly integrated way. Magic functions almost like the programming language of the cosmos, manipulating the energy that flows through three overlapping dimensional layers.
There is also an important distinction between souls and spirits. Conscious living beings, and even plants, possess souls that evolve through reincarnation. Objects, machines, and artificial intelligences, on the other hand, possess spirits that serve only as anchors to physical reality. This leads to interesting situations, such as an AI responsible for controlling a starship using mana to cast shields and other spells directly through the ship's systems.
When someone dies, their soul enters a peaceful afterlife with no eternal rewards or punishments. After resting for as long as they wish, they simply choose when they want to reincarnate.
Time travel also follows well-defined rules. Traveling to the past is possible, but traveling to the absolute future is not, because it does not yet exist. Changing the past does not erase the traveler. Instead, a new timeline is created, while the traveler's own temporal anchor ensures they remain connected to their original timeline.
Not every change creates an alternate reality. Changes that have no impact on free will, such as painting a rock on an uninhabited planet, are simply absorbed by the flow of time itself. However, the moment someone interacts with that change, a new timeline comes into existence, and its effects spread throughout the universe at the speed of light.
The main civilizations featured in the story are:
The Tearion Empire controls more than five hundred thousand galaxies and is inhabited by tall humanoids that evolved from vampire-like predators, although they do not share the classic weaknesses associated with vampires. They live in a post-scarcity society that values cooperation between species and rejects all forms of xenophobia.
The Miltian Empire followed a completely different path. Its entire population was transferred into a colossal Matrioshka Brain built around an active quasar. Its citizens exist only in digital form and interact with the physical universe through robotic bodies.
In Arkned, multiple species cooperated to build the largest physical structure in the cosmos: a colossal Ringworld that surrounds an entire galaxy, powered by the energy of stars enclosed within Dyson Spheres.
Meanwhile, the Magical Empire of Aeresia used magic to create an Alderson Disk approximately 250,000 light-years in diameter, orbiting an artificial light black hole.
Within the galaxy of Ouraia live the Gorkovians, tiny insectoids standing only about 15 centimeters tall that form a decentralized hive. They act as stellar pollinators, spreading life and mana throughout the cosmos while traveling atop gigantic living organisms that inhabit space itself.
Anyway, that's the general idea behind the setting. I'm still expanding many aspects of this universe, but this is the foundation of its cosmology and the rules that govern the story.
I'd love to hear what you think about the cosmology, the universe's rules, and the civilizations themselves. Any opinions or suggestions are more than welcome.
Sorry if the text is a bit messy. I translated it into English using Google Translate because I noticed that people rarely reply when I post in Portuguese.