Worlds that show what people really do.

Doing is different from saying.

Ask someone how they spend an evening and you get a story. Watch them spend one and you get the truth: what they reach for, what they leave, how long they stay. Alterday builds virtual worlds where people do what they would do, and the world notices. Measured from what people do, not from what they say about themselves.

The world is your home.

A house, a day, and the things a day is made of. Live in it when you have a few minutes, doing what you would do. Nothing asks you anything. Then talk about it with your chat model: it reads what you did there and can talk with you about your days, your habits, what you keep coming back to. What you did stays yours.

Alterday is in beta and invite-only: someone who plays invites you by email.

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Where this goes.

The same worlds can show how people behave in a shop, at a service desk, on the first day of a new job, before those places are built. If you want to see how people would act in yours, write to us.

hello@alterday.app