Uno Remix Card Game by Mattel

What you're getting

UNO Remix lets you build your own deck that evolves as you play. Each round, you and your group add special cards or write-on cards that change how the game unfolds. You can personalise cards for specific players, add marks to increase what the next person draws, block penalty cards, and plenty more besides.

Every group ends up with their own unique deck. The usual rules still apply — when you're down to one card, you've got to shout "UNO!" Colours and decorations may vary.