I don’t live in Brazil, but from what I’m aware of, Steam does keep track of where regional purchases are made and restricts them from being redeemed by accounts in other regions (Most examples are eastern European/SEA gamers being unable to gift games to other territories)
Additionally, even sites that sell “legit” keys may come with strings attached that are risky for the buyer (G2A has laundered game keys bought with stolen credit cards, whose chargebacks can and will ban your account), and often don’t apply regional pricing at all compared to straight from steam.
This leads to prices sometimes that due to currency conversion rates (and regional discounts), may seem cheap to western gamers but very expensive for South Americans or SEA/Eastern European gamers (Some companies don’t even care and just charge full US price).
I don’t live in Brazil, but from what I’m aware of, Steam does keep track of where regional purchases are made and restricts them from being redeemed by accounts in other regions (Most examples are eastern European/SEA gamers being unable to gift games to other territories)
Additionally, even sites that sell “legit” keys may come with strings attached that are risky for the buyer (G2A has laundered game keys bought with stolen credit cards, whose chargebacks can and will ban your account), and often don’t apply regional pricing at all compared to straight from steam.
This leads to prices sometimes that due to currency conversion rates (and regional discounts), may seem cheap to western gamers but very expensive for South Americans or SEA/Eastern European gamers (Some companies don’t even care and just charge full US price).