This is a minor suggestion, but it’s one I can see people disagreeing with, so please chime in if you believe this is a bad idea!
While Coin Shop games are still available for purchase, they’re either nice and bright if you haven’t bought them, or greyed out with “Already Purchased”, making it clear which games you’ve bought. Once the games are sold out and moved to the “Past Deals” part of the page, they’re greyed out with “Sold Out” text regardless of whether you bought them.
I think it would be nice to have “Already Purchased” remain on those games that the user has purchased even after they’re sold out, so that they can see what they got and didn’t get while browsing the sold-out games. It doesn’t change the obvious non-purchasability of the game, and it’s pretty clear that the deal is no longer available since it’s in the “Past Deals” section.
As a bonus, perhaps clicking on an Already Purchased game (in any part of that page) should take you to your Orders page, anchored to that purchase? Currently, clicking an already purchased game does nothing.
Both of these suggestions are entirely unnecessary for the site’s function, but I think they’d add a little bit more polish to the experience.