The Den · Play

The Playground

Curiosity without the paperwork. Take a short break, meet something strange, and see what happens when you press the interesting button.

Enter your subscriber code to play. Your saved progress stays in this browser.

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Subscriber code required · about two minutes

Do Not Feed the Specimen

Five tests. One strange little creature. Can you discover what makes it glow? The title is a warning. Your curiosity is a separate matter.

play with the specimen →

This is a game. It submits no research responses and awards no specimen XP.

Subscriber code required · no timer

Merge the Menagerie

Match two creatures to evolve them into something stranger. Six forms to discover, nothing to lose, and absolutely no rush about any of it.

start merging →

Your progress is saved in this browser only — not to your account, and not carried to another device. It awards no specimen XP and files no research responses.

Subscriber code required · no timer

After the Frost

Plant something, water it, sleep, and see what comes up. Four plots, four seeds, one unidentified crop, and a lab that tells you what it is without telling you whether it was any good. Dress Pip up while you wait. Nothing here is timed, and nothing can die.

tend the garden →

Your garden is saved in this browser only — not to your account, and not carried to another device. It awards no specimen XP and files no research responses.

Want to take the curiosity further?

The Observatory has real studies about humans and AI. Participation is free, and your specimen grows as you file distinct experiments.

explore the research →