As Gabe Newell said "piracy is a service problem"
I could pirate every game I have on my Steam account. I don't do it because the added value that Steam gives me.
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Gabe newell has 0 value in that discussion, Steam is defacto the monopoly on PC, when you make billions by not doing anything and taking 30% on every game it's less of an issue.
The other funny thing is that Half Life 2 came out with full blown DRM that only decrypted when the game released.
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