Steam take 30% of the purchases made via the Steam Store. If you sell a game on Steam, you can redeem as many Steam Keys for your game as you wish. Those keys are sold at 100% profit to you, Steam dont take any.

▲

dd8601fn 11 hours ago | parent [-]

Interesting. So you can freely sell keys outside of Steam and they don’t mind?

	▲	Rohansi 8 hours ago \| parent [-]
		You have to sell it for the same price, but yes. Most games on the Humble Store give you Steam keys, where Humble takes 25% and Steam gets nothing.