I've never trusted buying off of them cause I don't want my bank info stolen but I've recently realised I can just pay with paypal lol. Can anyone recommend which of those sites that sell keys for steam games are legit? I just need 3 copies of l4d2 to game with my friends.
Check steam first as it's often cheaper, in this case you want multi-player but piracy is preferable when you can't afford it, and don't get the random codes packs, even for a kusoge night, get too many empty asset flips you can't actually do anything with instead of something weird and interestingly bad.
I've bought dozens of games on key sites. The only time I've ever had an issue was one key got revoked a month later and the game removed from my account then presumably because it was bought with a stolen credit card or something. 99% of cases I didn't have any issues though
Best case scenario you are buying a key that someone bought in a cheaper region and is selling it in a more expensive region.
Worst case, your financial details or login are stolen.
Most likely case, you're buying a key that was either bought with stolen cards or a key that was directly stolen.
In any case the developer of the game can revoke a key for being obtained fraudulently, and since any keys bought with stolen funds are susceptible to a charge back fee and thus cost them money many would just prefer you pirate (since that costs them nothing).