It depends on where you are and what you are buying from us.
In most countries, we collect tax up front when you place your order and then take care of everything customs-wise for you in most countries (European Union, United Kingdom, Australia, China, United States, and Canada). This is called "Delivered Duties Paid" or "DDP". In the EU, this setup is called "IOSS" for low-cost items and "OSS" for higher-priced items.
If you are in a country where we do not have a fulfullment hub (anything outside of the European Union, United Kingdom, Australia, China, United States, and Canada), you may have to deal with your local customs office and may have to pay extra taxes to receive games, depending on the laws in your country.
If you believe that you have been required to pay an import tax that we have previously collected and remitted on your behalf, please contact us to address the issue.