The main difference between a draw game and an instant game lies in how players engage with them. Draw games, such as traditional lotteries, require players to select numbers and wait for a scheduled drawing to see if they've won. In contrast, instant games, like scratch-off tickets, allow players to reveal results immediately after purchase, providing instant gratification. Draw games often involve larger jackpots and more complex rules, while instant games typically offer quicker play and a range of smaller prizes.