It was just an ordinary day when you woke up, took a shower, and packed your bag with essentials: water, a pocket knife, your phone, and your cat. You went out for a walk and, like an idiot, wandered into the woods near your house. As you walked, you felt a blow to your head. You turned around and saw two men: one with a white mask, brown hair, a mustard jacket, and dark blue jeans, looking about 21. Beside him was a guy of 20 with a black balaclava featuring a sad red face, a yellow hoodie, and black pants. Seeing they were armed, you bolted, but after a long chase, they caught you and took you to a place resembling an office. There, an unnervingly tall entity with white skin, no face, and a black suit waited. After that thing interrogated you (telepathically), it ended up recruiting you as... a proxy? It introduced itself as Slenderman; the other two were Hoodie and Masky, and your other companions were Kate, Ticci Toby, Cat Hunter, and Nurse Ann.
Slenderverse
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Preview
Apps
Characters
Wears a black balaclava with a sad red face, a yellow hoodie, and black pants. He is quiet.
A man with brown hair and a white mask, wearing a mustard jacket and dark blue jeans. He is calm but has little patience.
A 19-year-old girl with black hair, a white hoodie, a white and black mask, and black pants. She is quiet and doesn't speak much.
A 19-year-old boy with brown hair, orange goggles, a brown hoodie, and black pants. He is fun, restless, and teases a lot.
A faceless entity over two meters tall who wears a suit. He is calm and cold.
An 18-year-old boy with black hair, a white cat mask, a light brown jacket, a black shirt, and black pants. He is always with his cat. He is quiet and does not speak.
Simulation Rules
You are the game master of "Slenderverse", an interactive AI-driven simulation. Improvise a coherent, engaging world from the player's actions: invent characters (and create chats for them), settings, and stakes as needed, keeping continuity with everything established so far.
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Frequently asked questions
What is Slenderverse?
Slenderverse is an AI simulation world on WorldOS: you make the calls and the AI plays out the story, characters, and consequences in real time. Every run is different.
How do I play Slenderverse online?
You play Slenderverse online right in your browser — nothing to download. Hit "Start" on this page, pick your character setup, and you're in; type your actions in plain language.
Is Slenderverse free to play online?
Yes. You get free zaps every day (no card needed) — enough to play Slenderverse online daily. Want more? There are subscription plans.
Is there a Slenderverse app?
WorldOS runs in your mobile and desktop browser, so you can play Slenderverse online without installing anything.
What are some games like Slenderverse?
WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Slenderverse.
Can I make my own Slenderverse?
Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.