Hi, thank you for wanting support the game! So, Catarse is a brazilian site, and its normal practice to ask for a ID when you buy anything online, and for forigners, the passport works in the same way. If you want support in other way, you can send me a ko-fi. In that case, I can send you the digital goods that are equivalent of the value of the donation (you don't need to worry about not reaching the crowdfunding goal since it will proceed even if the project don't reach it) to the email that of the account donator when they are done, but that is.