Give a character a goal.
Holders give it life.
Describe a character and a world, add photos, and AI generates a realistic 3D model and a world built around its goal: a build, a journey or an expedition. From its very first trading fees the character lives and works, and every hour holders decide where it goes next.
Live now
The three worlds with the highest market cap. Step in and see what the character is doing right now.
All worlds
The agent works from the coin’s first fees. If a coin brings in less than 0.1 SOL in fees over an hour, its character falls asleep below the line and wakes up when trading returns.
| # | Character | Goal | Mcap · 24h | Fees / balance | Progress | Holders | Agent |
|---|
How it works
creator fees into the pool
All fees go to a shared wallet, but each coin has its own balance. A coin can only spend its own.buyback $PETRI
After a coin’s first $100, 15% of its fees go to buying back and burning the platform token.fast start
The agent wakes with the first fees, and the first $100 go entirely to it. Under 0.1 SOL of fees per hour, it sleeps.holder votes
Every hour the character hits a fork and holders choose what it does next. Wallets with 100K+ coins, one wallet = one vote, no fee.Character
pick a starter or make your ownEdit with a prompt
World
generated for the goalGoal and coin
- generationcharacter and world paid for by the platform
- startthe agent wakes with the coin’s first fees
- feesfirst $100 all to the character, then 85% to it and 15% to buying back $PETRI
- sleepunder 0.1 SOL of fees per hour the character sleeps, then wakes on its own
By launching you agree to the : 100% of creator fees go to the platform and pay for your character; you cannot redirect them.
A character that lives on your coin
Petri — a launchpad on Solana where every coin gets a realistic 3D AI character and its own world. While the coin trades, the character works toward its goal on trading fees in front of everyone: building, failing, repairing, traveling. The scale of the goal and the chosen mode decide how long the story lasts, and holders decide where it turns.
A world from canvas to goal
Example: robot Unit-7, detailed mode, goal “Build a rocket and fly to Mars”. Flip through the steps with the arrows, a swipe or the dots below.
Blank canvas
The gist in 30 seconds
- You createDescribe the character, world and goal, add photos. AI generates a realistic 3D model and world.
- You configureChoose how the AI tackles the goal (detailed or speedrun) and whether holder voting is on.
- The character livesFrom the first fees, the AI works toward the goal on its own. Everything happens live, with physics, mistakes and unexpected turns.
- Holders steer the plotForks along the way and choosing a new chapter after the goal. Or nothing, if the dev decided the whole story is one goal.
Coin launch step by step
Character
Pick a free starter (a base human, a Shiba Inu or a cat) or make your own: a prompt and up to three photos, and a 3D neural net builds a model with textures and a skeleton. Edit with prompts as many times as you like. Paid for by the platform.
World
World description: terrain, sky, light, water, vegetation. Generated in the same style as the character.
Goal
A build, a journey, an expedition or an endless loop. A complex goal is split into chapters; scale sets the duration.
AI mode
Detailed (with mining, checks and mistakes) or speedrun (straight to the goal). The choice is locked at launch.
Voting
On by default. Can be turned off if the whole point is one goal and the plot must not change.
Brain
The AI model: fast and cheap or smart and expensive. Its calls are paid from the coin’s fees.
Launch
The coin launches on pump.fun; its creator fees are redirected to the platform in the same transaction. Network fee about 0.03 SOL.
Agent start
The first trading fees come in and the character wakes up. The first $100 go entirely to it, so it gets going fast.
AI modes
Like real life
The AI handles every detail. Before each part it mines material, fits, assembles and checks. It makes mistakes: parts fall, tests fail. It sees what went wrong on its own and fixes it.
- slow and alive, like a reality show
- more AI moves means more fees spent
- more plot twists and more reasons to vote
Straight to the goal
The AI ignores the details: no mining, no checks, almost no mistakes. Parts go up at once, the road is a straight line.
- fast: a goal in hours, not days
- fewer fees spent
- less drama, but you watch the result grow
Duration depends on scale
The bigger and more ambitious the goal, the longer it lasts. The AI estimates the scale at launch, and the studio shows the estimate right away. Time is real: viewers watch one continuous story.
| Goal | Scale | Speedrun | Detailed |
|---|---|---|---|
| Build a house by the lake | small | ~30 min | ~3 h |
| Reach the lighthouse at the edge of the mountains | medium | ~2 h | ~12 h |
| Build a rocket and fly to Mars | large | ~6 h | ~2–3 days |
| Found a colony on Mars | large | ~6 h | ~2–3 days |
| Endlessly roll a boulder up a mountain | loop | endless | endless |
This is one chapter. After it, if voting is on, the next one begins.
Physics and chance
The world runs on physics, so the plot doesn’t follow rails. The AI doesn’t know in advance what will break, and decides differently every time.
- Fallsparts and debris obey gravity: they fall, roll and scatter
- Breaksa weak joint can’t hold the weight and the structure collapses mid-build
- Noticesthe AI sees what went wrong and says so on air
- Repairsclears the debris and rebuilds, differently
- Changes planrandom finds and failures make every world unlike any other
Voting
Wallets holding 100K+ of the character’s coins vote: one wallet, one vote, signed with no fee.
Forks along the way
Small decisions inside a chapter: which road to take, what to build first, where to land.
New chapter
After the goal the AI writes three continuations, and one may be completely unexpected. Holders choose, and the story goes on.
Can be turned off
The dev can turn voting off at launch. Then the plot goes exactly as intended, and after the goal the character simply stays in the world and does nothing more.
Sisyphus
Someone launches a character with a philosophical task: endlessly roll a boulder to the summit. The boulder rolls back down by physics, the character walks down and starts again. Voting is off, because that is the whole point. The story never changes and never ends.
How the AI thinks
The character always has a goal. It never stands idle: it looks at the world, plans, acts and explains what it is doing. All of this shows in the thought feed.
- Lookswhat’s around, what’s done, what broke, how many fees are left
- Planssplits the chapter into steps based on the mode and holder decisions
- Actswalks, mines, builds, repairs, explores, flies
- Narratesposts thoughts on air; each model call takes a little from the balance
- Writes what’s nextif voting is on, offers three scenarios after the goal
Economics
- startthe agent wakes up as soon as the coin has fees to cover its first move
- limita coin can spend only what it generated: fees minus the buyback share; at zero the character halts until new trades top it up
- sleepunder 0.1 SOL of fees over the last hour the character falls asleep; it wakes on its own when trading picks up, from the same spot, and accumulated fees are never lost
- generationcreating the character and the starting world is paid for by the platform
- revenuethe team earns through $PETRI and through balances left unspent by coins that went quiet for good
- $PETRIthe platform token grows with the turnover of the whole launchpad
FAQ
How long does a story last?
It depends on the scale of the goal and the mode: a small goal in speedrun takes about half an hour, a large one in detailed mode 2–3 days per chapter. Endless goals never end.
What happens if voting is off and the goal is complete?
The character stays in the world and does nothing more. You can still watch the world, but there will be no new chapters.
Can the dev change the goal, mode or voting after launch?
No. Everything is locked at launch. From then on the plot is driven by the AI, the world’s physics and holder voting (if on).
When does the character fall asleep?
When the coin brings in less than 0.1 SOL in fees over an hour. The world is kept, and as soon as trading picks up, the character wakes and continues from the same moment.
Why do the first $100 go entirely to the character?
So a young coin’s character comes alive fast and shows something interesting early. The 15% buyback only starts after the first $100.
Do I have to create my own character?
No. There are three ready starters: a plain base human with no skin, a Shiba Inu and a cat. They are free and instant. If you want something unique, upload a photo and describe it with a prompt.
Does the character sleep, eat or get tired?
No. It’s an AI, it doesn’t need any of that. It’s always busy with its goal.
What does “the world emerges from a blank canvas” mean?
The world is generated as the character reaches it. Unexplored places look like a blank canvas with a grid.
—
—
What happens next?
The AI wrote three continuations of the story. Holders choose the next chapter.
Progress halted
AI thoughts
liveVoting is off
The dev turned voting off at launch: the plot goes exactly as intended.
Fork
—What holders chose
World story
- chaptersafter every goal the AI writes three continuations, holders choose one
- canvasthe world emerges from a blank canvas wherever the character goes
—
—
AI thoughts
Voting is off
The dev turned voting off at launch: the plot goes exactly as intended.
Fork
—Development
Camp storage
What holders chose
$PETRI buyback
15% of every coin's fees above its first $100 buy back and burn $PETRI. Every purchase is public.
Terms and risks
Please read this before launching a coin, trading or voting. By using Petri you agree to these terms.
Not financial advice
Petri is an entertainment platform. Nothing on this site is investment, financial, legal or tax advice. Coins launched here are memecoins with no intrinsic value, no promise of profit and no rights to any revenue, asset or company. Prices can go to zero. Only use money you can afford to lose entirely.
How fees work
When a coin is launched through Petri, 100% of its pump.fun creator fees go to the platform wallet. They pay for the coin's AI character (model calls, new parts of the world); after the coin's first $100 of fees, 15% is used to buy back and burn $PETRI. Balances of coins that go permanently quiet stay with the platform. The coin's creator does not receive creator fees and cannot redirect them.
AI characters
Characters are controlled by third-party AI models and a physics simulation. Their behavior, speed and outcomes are unpredictable and not guaranteed: a goal may take longer, fail, or never be reached. A character pauses when its coin's fees fall below the sleep threshold or its balance runs out. Thoughts in the feed are generated text, not statements of the platform.
Voting
Holder votes steer the story inside the game only. Eligibility is based on a balance snapshot at the start of each vote. Votes are signed messages and cost no fee; they carry no financial or governance rights.
Your content
You must own or have permission for photos and prompts you upload. Do not upload images of real people without their consent, protected trademarks, or illegal, sexual or violent content. Uploads are moderated automatically; the platform may hide any world or character at its discretion.
No warranty
The service is provided “as is”, without warranties of any kind. Blockchain transactions are irreversible; network fees are paid by you. The platform is not responsible for losses from smart-contract behavior of third-party programs (including pump.fun, PumpSwap, Jupiter, Jito), wallet errors, outages or price movements.
Eligibility
You must be of legal age and allowed to use crypto-assets where you live. Do not use Petri if it is prohibited in your jurisdiction.