Green man gaming

when you buy something on green man gaming, do they give you a key for steam or something? - not every time

GMG does not accept Paysafecards as payment, they accept a creditcard and Paypal. Also each product on GMG says which DRM gets used (when DRM gets used). When it says, that its for Steam, then you receive a Steamkey, when it says its for Origin then you dont get a Steamkey.

If the game gives you a Steam key, it will say so. Like this, from here.

u have to read if it gives steam key. or the game is required steam sometimes it doesn't.