Watch the Launch Trailer for UNO Wonder, a mobile card game based on the legendary classic UNO game developed by Mattel163.

Following millions of pre-registrations and installs, Mattel’s new mobile game UNO Wonder is now available on the App Store and Google Play.

UNO Wonder was globally released on Sept. 17, 2025, for both Android and iOS devices, debuting nine new action cards.

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