Games differ, but typically, you will need to match three scratch card symbols to be rewarded a prize. You will be presented a digital card in which you’ll need to click to reveal what symbols were previously hidden. If you want to play scratchcards online, luckily they are incredibly simple to understand. If you’ve ever spun slot reels, you’ll find the matching of symbols a familiar concept to online scratch card games. Typically, online scratch cards are set on a 3 x 3 grid, and all you have to do is match the winning symbols in a line. When playing with lottery scratch cards this is a layer of foil, but how do online scratch cards work? When playing the online version, it is an animated virtual layer that you can click on to remove. Also known as “instant win games”, “instant win scratch cards”, “scratch offs”, and “scratchies”, scratch card games online are played by finding the lucky symbol hidden beneath a layer that you must scratch off. Scratch card games have been around for a long time and are one of the more popular forms of luck-based games around. Frequently Asked Questions about Online Scratch Cards.