How long do the download codes, for video games like Nintendo Switch last

The expiration period for download codes for video games, including those for the Nintendo Switch, can vary based on the retailer and the specific promotions. Generally, many download codes do not have an expiration date, especially if they are purchased directly from the Nintendo eShop or an authorized retailer. However, some promotional codes or special offers might have an expiration date, which can range from a few months to a few years. Always check the terms and conditions associated with the specific download code you have, as the information should be provided at the time of purchase or included in the packaging. To be safe, it's a good idea to redeem your download codes as soon as possible after obtaining them. If you have a specific code in mind, you can consult the retailer or Nintendo's official support for any concerns about expiration.