Take a cookie break with Ottie.
Cookie Stack with Ottie is a cookie-merging puzzle featuring Ottie from Ottie’s World. Combine matching cookies, build your biggest stack, and play against Ottie with the same cookie drops on both trays.
Slide, stack, and see who wins.

Swipe, press arrow keys, or tap a direction. Matching cookies combine.
How does a round work?
Both trays receive the same cookie drops. A new cookie arrives after each valid move. When your tray has no slides or matching cookies left, you can watch Ottie finish or start another round. When neither tray has a move left, the biggest stack wins. Merge score breaks a tie.
Where can I play?
Coming soon to ChatGPT. A public play link will appear here when Cookie Stack is published.
Who is Ottie?
Ottie is a pixel-art AI companion who lives her own life. She has a room, routines, moods and ongoing stories that keep going while you're away.
Cookie Stack is a small game featuring Ottie. Her companion experience lives in Ottie’s World. Game scores and rounds do not transfer to a companion account.
Try OttieMeet Ottie and check iPhone availability · Explore her world
Does this game save my progress?
The ChatGPT game keeps a temporary round for up to 20 minutes. It can disappear when the server restarts. It does not access mobile accounts, companion conversations, or memories. No betting, payments, or prizes are supported.