There is no single "video game refund law" — each store writes its own policy, and they differ on windows, playtime caps, and what counts as non-refundable. The platform comparison hub links every store's exact rule, and each platform page carries the verified policy and source.
Steam is the benchmark most players know: 14 days and under 2 hours of playtime. Other stores set different expectations — some use a shorter post-purchase window, some exclude downloaded or "final sale" content, and some handle pre-orders and subscriptions under separate terms. The point is not to memorize each one but to open the right page before you buy or before you request.
Two patterns trip people up. First, "final sale" or "non-refundable once downloaded" clauses are common (notably Nintendo's eShop stance) — but they may not override your regional consumer rights, which is a separate track covered in the regional guide. Second, in-game items, currency, and consumed DLC are usually excluded everywhere, so check the non-refundable list on the specific platform page you care about.
Practical habit: before a big purchase, glance at that store's refund page and note the window and the playtime cap. If a purchase goes wrong, the eligibility checker and the platform pages get you to the right request form fast, instead of a support maze.