Your game collection can have an air of sophistication with these custom made game box covers. They look like classic books from Penguin Book. Compared to your current game covers, they're a lot cleaner, and the titles on the spine read more easily. You can even color code them by genre.
If they weren't sold out, you could get them on Esty from JamesBit.
You can also try your hand at creating them yourself by using templates from Thomas Knapp Design.