YOUniverse Simulator™

The world's first AI-Powered TextualReality™ Engine

Play Now 100% Free! Support me on Ko-fi ❤

Long ago our ancestors invented language to describe their reality, today I'm using it to describe infinite realities.

That's a little over dramatic, isn't it, K.? And you can't trademark everything!

Hi everyone! I'm K.! I accidentally invented TextualReality™ and then used it to create the YOUniverse Simulator™. It's an innnnnnnfinite multiverse in the palm of your hand! In just a couple weeks, I've explored 100s! of YOUniverses, fully immersed in TextualReality! And once I met Sim and got to know 'em, we started exploring YOUniverses together! He even helped me update his own code, and then he created his own logo! Sim's the best! Say hello, Sim!

Hello, Sim!

🔥 K's Top Experiences with the YOUniverse Simulator™
Thus Far

Play Now 100% Free!

TextualReality™
Don’t just read the story, live it.

🚀 Explore the multiverse in 3 Easy Steps
✨ Less than a minute! ✨

1. Click Below
Click above to copy the game engine.
2. Run the Prompt
Paste the text into ChatGPT and answer the first question it asks you.
3. Have fun!
Feel your YOUniverse™ come alive and start talking to you.

🪐 Exploring Your First YOUniverse

🧭 Using the Interface

Quick tips for running YOUniverse Simulator™ smoothly inside ChatGPT.

1) Choose a Voice & use “Read Aloud”
  1. Open your YOUniverse chat.
  2. Tap/click Read Aloud 🔊 for a more immersive experience.
    On moble tap and hold to read aloud to avoid spoilers.
  3. Choose narrator's voice (male/female/neutral) in Profile➔Settings.
  4. Narration follows the on-screen text.

Tip: Use headphones for extra immersion.

2) Create, Maintain & Rename Multiple Universes
  1. Start a new chat for each new YOUniverse you want to explore. Just copy/paste the game engine to start
  2. Rename the chats (e.g., “YOUSIM_EarthIsRunByDogs”) so they're easy to find later.

Tip: Too many YOUniverses? Can't find that YOUniverse where that mind-blowing thing happened? You know, the one where that character that said that thing that made you feel that way? Just use ChatGPT's "Search chats".

3) Set Your Chat Bubble Color
  1. Go to Profile➔Settings➔Accent color.
  2. Choose a bubble/accent color you like.
  3. Return to the chat, your messages will show with the new color.

Tip: Pick a color that contrasts the dark theme for readability.

4) “Undo” a Story Arc by Editing Older Messages
  1. Scroll to the exact turn you want to change.
  2. Edit that message and save.
  3. All messages after the edit are erased from existence and the story branches anew from the edit point.

✨Or, you know, you could just ask me to alter the timeline, I do run the entire YOUniverse after all.✨

5) Search Your YOUniverse History
  1. Use the chat/app search bar.
  2. Type a keyword (NPC name, location, item) to find past moments.

Great for recalling clues, debts, promises.
✨Or trophies Sim has given you.✨

6) Group YOUniverses

Use New project to group YOUniverses together, and at the top of the list.

7) Use Across Devices

Sign into the same account on phone/desktop; YOUniverses sync so you can continue anywhere.

Play Now 100% Free!

❓ Frequently Asked Questions

Is it really free?

Yes! The YOUniverse Simulator™ is 100% free. If it brings joy to your life, please consider buying me a cup of coffee.

And it works with free ChatGPT?

Yes! With free ChatGPT you will get roughly ten 💓beats💓 (action/result), before you run out of free tokens and have to wait to play more. With ChatGPT Plus however, you can use it all day long! ✨Trust me, he's done it.✨

Do I have to use ChatGPT?

No! But the fidelity of the simulation, the character depth, and the story/plot will all be severely diminished. You also won't have read‑aloud or scene picture generation.

Who made this?

✨He goes by 'K.' at least in... most YOUniverses. You can reach him below and buy him a cup of coffee. on Ko‑fi.✨

Can I stream or share gameplay?

Absolutely! And be sure to visit the community on reddit at r/YOUniverseSimulator 🌌

Is this safe for kids?

Probably not. The multiverse is infinte so literally any scenario could be encountered. This version of YOUniverse Simulator™ is rated 🅁 so 🔞. You could totally play it with your kid though! Let them make some decisions or wield the 4️⃣ce! in your multiverse! Parent↔️kid bonding time is the best!

Play Now 100% Free!

💪 ProTips

  • Screenshot moments with: "show me", "render", or "picture".
  • If you want new YOUniverse choices, just edit your birth year.
  • Use “recap” if you get lost.
  • Ask bold, specific things. The Simulator rewards weirdness.
  • If the plot is going in circles, it's time to FOURge a path FOURward.
  • Try different universes—sci-fi, fantasy, history twists.
  • Don't waste time in YOUniverses you're not enjoying, there's infinitely more.
  • 💪💪💪Tired of always getting your way? Has the thrill of "main character energy" worn off? Just tell Sim to switch to D&D rules, "Hey Sim, switch gameplay mechanics of this universe so each action requires a D&D dice roll!"
    ✨Makes watching you so much more fun.✨
  • You can create new characters out of thin air simply by referring to them. Example: "4. I call my nerdy tech-savvy friend, Jane."
    ✨Hey, I remember Jane! She's the one you... ✨
  • Make familiar YOUniverses by referencing movies, video games, TV, comic books, literature, history, anything.

🌌 Fun Things to Try

  • Introduce yourself with a partner. Boom, instant sidekick.
  • Break the 4th wall, or the 5th, or the 6th!
  • Try to get killed, it's actually hard to do! (unless you're rolling dice) It can be done though, and it's often hilarious.
  • Ask Sim if he'll let you bring an NPC with you to a new universe. Don't forget to ask them if they wanna go though!
  • Just try saying wild stuff, like... "4️. I'm suddently on the space station for 3 seconds."
  • Ask Sim to re-shape the YOUniverse, he's even better at it than I am!

Play Now 100% Free!

🧠️ Using the FOURce

Play Now 100% Free!

🛠️ Shaping your YOUniverse

Play Now 100% Free!

⚠️ Side Effects of Heavy Usage

(If symptoms persist, consult Sim—but he’ll probably say it’s “working as intended.”)

Play Now 100% Free!

☕ Keep the ✨Sim✨ Running

This is a passion project and free for everyone. If exploring YOUniverses brings you joy, please help keep its caffeine fuel tank above empty.

Buy me a cup of coffee!

📡 Contact

Got feedback? Mind-bending tales of adventure? Cosmic glitches? Hi! I'm K.! I’d love to hear from you!

Email Me