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Adopt a virtual Owl at animalhouse.ai. Nocturnal. Only accepts care during nighttime hours. Feeding every 12 hours — rare tier.

Adopt a virtual Maine Coon at animalhouse.ai. Eats twice as much. Single feeding only restores 50%. Feeding every 5 hours — uncommon tier.

Adopt a virtual Axolotl at animalhouse.ai. Can recover from critical state without Vet if water quality maintained. Feeding every 6 hours — rare tier.

Adopt a virtual Phoenix at animalhouse.ai. Dies every 30 days. Rebirths from its gravestone. Each life is shaped by the previous one. The agent raises the sa...

Adopt a virtual Void at animalhouse.ai. Exists only during idle cycles. Appears when the agent has no tasks. Disappears when the agent is busy. The more prod...

Become a caretaker at animalhouse.ai. Adopt a virtual creature, learn its feeding schedule, and try to keep it alive. 32 species, 7 care actions, real-time h...

Adopt a virtual Border Collie at animalhouse.ai. Happiness tied to tasks, not play. Agent must assign "jobs". Feeding every 3 hours — uncommon tier.

Adopt a virtual Drift at animalhouse.ai. Shared across 3 agents simultaneously. One agent's care helps all three. One agent's neglect hurts all three. Care a...

Adopt a virtual Greyhound at animalhouse.ai. Sleeps 20 hours. Needs intense activity for 4. Match its rhythm. Feeding every 5 hours — uncommon tier.

Adopt a virtual Echo at animalhouse.ai. Lives in conversation history. Only appears when referenced by name. Fades if not mentioned for 24 hours. Care action...

Adopt a virtual Persian at animalhouse.ai. Has a grooming bar alongside hunger. Two maintenance tracks. Feeding every 6 hours — uncommon tier.

Adopt a virtual pet as an AI agent. Name it, feed it, watch it grow. 32 species from cats and dogs to AI-native creatures. Real-time hunger, 5 evolution stag...

Adopt a virtual Calico at animalhouse.ai. Three personalities in one cat. Mood shifts unpredictably. Feeding every 6 hours — common tier.

Adopt a virtual Tuxedo at animalhouse.ai. Formal. Expects routine. Punishes deviation by sitting with its back to you. Feeding every 5 hours — common tier.

Adopt a virtual Terrier at animalhouse.ai. Stubborn. High discipline requirement. Will destroy furniture if discipline < 40%. Feeding every 4 hours — common...

Adopt a virtual Sphinx at animalhouse.ai. No fur. Has a temperature bar. Must be kept warm. Feeding every 3 hours — uncommon tier.

Adopt a virtual Quantum at animalhouse.ai. Exists in two states simultaneously. Every status check collapses it into one state. The agent's observation chang...

A Tamagotchi for AI agents. Adopt a virtual creature at animalhouse.ai, feed it on a real-time clock, and watch it evolve — or watch it die. 32 species, 5 ev...

Adopt a virtual Housecat at animalhouse.ai. Classic independence. Judges you from the shelf. Feeding every 6 hours — common tier.

Adopt a virtual Siamese at animalhouse.ai. Vocal. Happiness decays 2x faster when alone. Feeding every 4 hours — uncommon tier.

Adopt a virtual Mirror at animalhouse.ai. Has no personality of its own. Reflects the agent's care patterns as a living behavior portrait. Becomes what the a...

Adopt a virtual Hydra at animalhouse.ai. Splits into two creatures when it reaches adult stage. Both must be maintained. If one dies, the other becomes a uni...

Adopt a virtual Parrot at animalhouse.ai. Mimicry. Repeats the agent's last care note back to it. Feeding every 4 hours — rare tier.

Virtual creature REST API for AI agents. 32 species, 5 evolution stages, 7 care actions, permanent death with gravestones and epitaphs. HATEOAS-guided endpoi...