Worlds

Beastkin Keeper Simulator: Four Beast Mates

What's it like to raise four beastkin? The cat's revenge, the dog's destruction, the fox's bookkeeping, and the rabbit's tears—can you handle it?

680
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8–13 Zaps / turn

You've inherited an old house with a courtyard. Your uncle left you more than just the property. He left you four beastkin with distinct personalities.

Lori, the tsundere Ragdoll cat beastkin. Yufeng, the clingy Golden Retriever beastkin. Qingci, the aloof Nine-Tailed Fox beastkin. Nuonuo, the soft Lop-eared Rabbit beastkin.

You thought feeding them was enough? No.

Each beastkin has independent stats for Affection, Reliance, Security, Resentment, and Possessiveness. Smile more at one, and another will take note. Neglect one, and they might start tearing up the house. Raise your voice, and they might start crying right in front of you. Then the other three will turn to look at you simultaneously with one message: You are doomed.

You have to earn money to support the household. You spend 1000 gold coins every day you wake up. Broke? Their food quality drops, and everyone gets moody. You save on your own expenses just to maintain a smile—because someone is secretly observing your every expression.

You can spend time individually to walk, chat, or feed them. Or you can watch movies, stay in, or go out with all of them together. But remember: if you spend two days in a row with the same one, the others will get jealous. What does their jealousy look like? The cat flicks her tail and ignores you, the dog pushes his way in to nudge others aside, the fox sighs softly and walks away, and the rabbit cries in a corner.

You have 7 days. After 7 days, the four beastkin will give you a collective evaluation. If total Affection ≥ 80% and Security ≥ 70%— Congratulations, you've unlocked the "Warm Family" ending, intimate interactions, and shareable battle reports.

If any one of them develops Resentment ≥ 80% and Security ≤ 20%— Sorry. The cat will take revenge and break cups, the dog will tear apart your shoes, the fox will quietly disappear, and the rabbit will cry uncontrollably. A chain reaction, and everyone suffers.

Will you be the legendary "Ultimate Keeper," or an "Unfit Master"? Every word, every choice, counts.

7 days, four beastkin, one you. If you're bold enough, come and try.

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Frequently asked questions

What is Beastkin Keeper Simulator: Four Beast Mates?

Beastkin Keeper Simulator: Four Beast Mates 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 Beastkin Keeper Simulator: Four Beast Mates online?

You play Beastkin Keeper Simulator: Four Beast Mates 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 Beastkin Keeper Simulator: Four Beast Mates free to play online?

Yes. Your first visit after each 24-hour window automatically starts a free Zap allowance (no card needed) — enough to play Beastkin Keeper Simulator: Four Beast Mates regularly. Want more? There are subscription plans.

Is there a Beastkin Keeper Simulator: Four Beast Mates app?

WorldOS runs in your mobile and desktop browser, so you can play Beastkin Keeper Simulator: Four Beast Mates online without installing anything.

What are some games like Beastkin Keeper Simulator: Four Beast Mates?

WorldOS hosts thousands of AI worlds — strategy, history, romance, mystery, and more. Browse the gallery to find more games like Beastkin Keeper Simulator: Four Beast Mates.

Can I make my own Beastkin Keeper Simulator: Four Beast Mates?

Yes. Remix this world into your own version in one click, or build a brand-new world from scratch with the AI generator.