Banished - As always, Email support (at) shiningrocksoftware (dot) com if you have any issues. This will likely be the last update of Banished, except for any major bug fixes. The OSX and Linux versions development has stopped, and won't be released.
ARPAY - Buy gift cards at ar-pay.com, which allow you to access your favorite internet services: online games, e-wallets and console games, online shopping cards and many more!
ANNO - ANNO is a city-building and economic simulation video game series, with real-time strategy elements.
G2A - Enjoy the vast offer of Steam, Origin, Uplay, Battle.net, GOG, PSN and XBOX CD-Keys at the most attractive prices on the market. Don’t overpay – buy cheap on G2A.COM!
Age of Empires (series) - The Eso.com url/domain is going away on 7/23/2018. After that time, you'll need to access this site via agecommunity.com. Please update your bookmarks!
Kinguin - Marketplace to buy/sell game keys for a myriad of platforms including: Battle.