Este tot gray market dar este mai safe decat altele de genu.
Dar este un subiect discutat pe tot internetul.

Is CDKeys Better Than G2A? I Decided To Find Out
What makes CDKeys different is they do not allow users to sell keys, they get all the keys themselves!

CDKeys management team has over thirty years of combined experience in gaming, this gives them a massive network of suppliers and contracts to source keys. They buy globally to get the cheapest price possible and pass the saving onto the consumer.

To put it simply CDKeys will buy a game from a company where the currency is weaker and the price lower, and sell that game for a cheaper price. This practice is common and makes CDKeys a grey market.

It’s similar to exploiting the Nintendo E-shop to get the cheapest game possible, to see my guide on how to do this check my post here.

CDKeys have detailed terms and conditions that protect both you and CDKeys from fraud, so if stolen keys appeared on CDKeys they would be directly liable, whilst G2A can just say they are not responsible for where sellers get their keys.
Is it ok to buy games from g2a, cdkeys etc?
PC game storefronts compared: what you need to know about retailers and resellers