CryptoKitties - Breed and collect adorable creatures using Ethereum
itch.io - An online game marketplace and community.
Cheeze Wizards - A blockchain battle royale from the CryptoKitties team
Ubisoft Club - Ubisoft Club app enables you to get updates about your favorite games timely.
Everdragons - A blockchain game that includes competitions and bets, both based on real life events and with the chance to win cryptocurrency. At the core of it are the awesome and unique collectibles called Everdragons.
GOG.com - DRM-free game store, selling both new and old titles. No clients required.