Selling on Mage is currently free. No listing fees, no commissions on sales.
Mage charges a small fee to buyers, to cover the cost of processing online payments by our payment provider: 25p +1.7% of the total value of each order. These fees only apply when you put money into the system, not when you use funds that are already in your Mage wallet. For example, if you sold a game and £40 were added into your wallet as a result, you can make orders worth up to £40 without having to pay any fees.