No online lottery sites will let you play for free without making a real money deposit first. Making a deposit helps verify your identity and shows the company you are genuine about playing lottery. It is possible to claim great sign-up offers, though, that include extra tickets and lines. Plus, you will be eligible for regular promotions that include discounts and free tickets to try other lotteries and online scratch cards. So if you are asking whether it is possible to win a big prize with a free lottery ticket, then the answer is yes!