Mattel163, the first joint development and publishing venture between Mattel and NetEase, is releasing an enhanced version of the card game.

Previously only available via Facebook Instant Games, and in select territories on mobile, the game has already seen a staggering 45m players to date. Uno! is now officially available to players worldwide in the App Store and Google Play.

Amy Huang, CEO at Mattel163, commented: “Having already enjoyed enormous success on with Uno! on Facebook’s Instant Messenger service, we’re delighted to have collaborated with our partners NetEase and Mattel to bring Uno! to a worldwide audience today on iOS and Android devices. Players throughout the world can now enjoy all the light-hearted, competitive gameplay that the mobile version brings, including new games modes and the chance to instantly connect with friends and family.”

Playing Uno! on mobile devices opens-up a whole new way to enjoy the world’s number one card game, featuring a brand-new rule set, inclusive tournaments, additional game modes and the ability to connect instantly with friends and family around the globe.

Starting 1st February, the game will celebrate Valentine’s Day with a special Rose Cup quest, encouraging players to complete daily quests.