Game keys sold well below the platform's own listed price raise an obvious question — how is that legitimately possible? The honest answer is regional pricing arbitrage, and it's a real, generally legitimate practice, with some genuine caveats.
Publishers price games differently by region based on local purchasing power — a key legitimately purchased in a lower-priced region and resold is exactly how many of these lower prices exist, not necessarily fraud. Marketplaces built around this model have operated openly for years specifically because publishers largely tolerate regional arbitrage as a known side effect of regional pricing.
The risk isn't usually "the key doesn't work" — reputable marketplaces have buyer protection specifically because that does occasionally happen. The bigger risk is regional lock: some keys are region-locked and won't activate outside their intended region, or require a VPN to activate, which is worth checking before buying if you're not in the key's origin region.
Checking seller ratings and reviews, buying from marketplaces with clear buyer protection policies, and confirming the key isn't region-locked for your area before purchasing covers most of the realistic risk. Avoid marketplaces with no visible reviews or protection policy at all, regardless of how good the price looks.
For popular titles from established third-party marketplaces with real buyer protection, this is a legitimate, commonly used way to save money — just verify region compatibility first, which is the one thing that actually goes wrong with any regularity.