My son loves to play Roblox online. It seems like a good game that encourages his creativity and it is free to play. Alas, the game is full of opportunities to make in-game purchases -- in other words, you get to exchange your real money for things like virtual hats and swords for your character. While I think this is a huge waste of money, this is often what my son wants to spend his allowance on. So at least by getting these gift cards, he can fritter away his money without me having to put in a credit card number on the game site (and then having him be able to spend against my credit limit - yikes!). I buy a roblox gift card at best buy for $10, load it onto his account, and he can spend until its gone -- no risk of unanticipated charges and no chance he'll spend more than his limit. These gift cards have always worked great over the years he has played the game -- sadly, I have used WAY too many of them!