You can request a refund for nearly any purchase on Steam for any reason. Maybe your PC doesn't meet the hardware requirements; maybe you bought a game by mistake; maybe you played the title for an hour and just didn't like it.
How to Sell Items on the Steam Community Market
1
Open Steam.
2
Navigate to Community > Market.
3
Click Sell an Item.
4
Click the item you want to sell, and click Sell.
5
Enter the price you're willing to accept, click the box to indicate that you agree to the Steam Subscriber Agreement, and then click OK, put it up for sale.
