In the Duchy of Vespyr, House Talyn rules with an iron fist. Terror at their very name permeates throughout the land and heads duck at their mention. And they rightfully should. After all, Vespyrâs ruler and heirs are gods among men, creatures of eternal life who feast off of the blood of their lessers.
âVampires,â people whisper, their tones equal parts terror and awe.
You are a young villager from a settlement near Castle Vespyr. Every three years, your village selects two sacrifices to offer as servants to your lieges. When you and your little brother, Julian, are chosen as this periodâs sacrifices, you are condemned to certain death.
As you leave for the stronghold of your overlords, you are sure that your days will be short and miserable. You can only hope, at least, that your deaths will be quick. But then you catch the attention of the volatile vampires who rule you. And all of a sudden, both you and your brotherâs survival â or your agonizing deaths â might be in the cards.
Note: Survival of the Fittest is a dark romance. The love interests are cruel, self-interested, and brutal. They are truly bad people, and their treatment of the MC is far from the hallmark of a healthy relationship. Understand this going in.
The game has four romance options and five romance routes. They go as follows:
Marcus/Marcia
Vespyrâs ruler. M is careless and violent. Their temper is infamous to all the servants of the castle. Unfathomable amounts of blood stain their hands, and they thrill in that fact. Despite being the Duke/Duchess of Vespyr, they care not for ruling, often shrugging their responsibilities onto others.
M is tall and muscular, with bold, square features. They have light brown skin, bright hazel eyes, and curly black hair lined with some silver that falls to just below their ears.
Lucius/Lucia
The eldest adopted child of Vespyrâs ruler. L is cold and aloof, placing duty above all else. If a servant has to choose which of the siblings to serve, they would likely pick them. But beneath all of their ice-cold control, fire burns beneath their skin. On the rare occasions when their savagery is unleashed, it is devastating.
L is tall and statuesque, with cutting, aristocratic features that could have been carved out of marvel. They have pale skin, frigid blue eyes, and straight blond hair that reaches their shoulders.
Damianos/Damiana
The middle adopted child of Vespyrâs ruler. D is vain and frivolous, prioritizing their own desires over all else. To be caught by one of their whims is to be granted certain death. The servants of the castle keep their heads down in Dâs presence, lest they be pulled into one of their cruel games.
D is of average height and has a slim build, with slender, delicate features. They have black skin, dark brown eyes, and coiled black hair they keep in braids.
Antonius/Antonia
The youngest adopted child of Vespyrâs ruler. A is playful and whimsical, always quick to grant their favor with the servants. But as bright as their affection shines, it burns out just as quickly. A long line of dead former favorites trails after them. The servants fear them most out of their ruler's children.
A is short with a soft build. Their features are round and heart-shaped. They have warm bronze skin, stormy gray eyes, and curly brown hair that falls to their back.
Play as male or female
Customize your MCâs appearance and personality
Choose between one of five romance routes
Do your best to survive Castle Vespyr, or pay the price with your life
Try to resist the degeneracy of Castle Vespyr, or fall into it
Note: As of 5/31/26, Survival of the Fittest is on Hiatus because of new job opportunities.
Hi everyone! This is extremely awkward to write considering I literally just announced my return. But I just received an email from an interview that I applied to, and I have good news and bad news. The good news: I got the job! I'll be able to make more serious money. The bad news: ... it's going to be extremely demanding. So. With that being said. I'm not deleting this blog, because my hope is to come back to it eventually. And I'm leaving the demo up as well, because people have a right to play it. However, I'm going to have to take a step back from writing in order to actually keep this new job. I'm highkey embarrassed to be writing this up, and I feel really bad. But I thank everyone for their understanding! The economy is tough.
