In
uno online, before diving into the online world, it's crucial to understand the core gameplay of UNO. The objective remains the same: discard all your cards before your opponents. Match cards by color or number, and strategically utilize special cards like Skip, Reverse, and Wild Draw Four to disrupt your rivals' progress. Don't forget the golden rule – yell "UNO" when you have only one card left in your hand, or face a penalty!