Steam up until now has had a pretty big brickwall when it's come to refunds. If you resided in Europe then there were one or two EU consumer rights laws you could cite that would cause them to give a refund but they recently eventually changed the terms on purchasing to state by downloading a game you were surrendering your rights to a refund under those laws. Now it seems after the likes of GOG.com and EA's Origin have both made a stance clearing attacking Steam on refund policy grounds by clearly stating they're open to refunds like some other platforms, Valve are finally changing their stance. Steam Refunds In a nutshell, as long as it's not a movie or a in-game purchase for a non-valve controlled game. If you've used it for less than 2 hours and it's within 2 weeks of the time of purchase, they'll grant a refund. No questions asked.