CryptoKitties - Breed and collect adorable creatures using Ethereum
Cockatrice - Cockatrice is an open-source, multiplatform program for playing tabletop card games over a network.
MetaMask.io - A crypto wallet & gateway to blockchain apps
Hearthstone - Pick up your cards and throw down the gauntlet!
CryptoFighters - Collect, train and battle with unique fighters with Ethereum
XMage - XMage allows you to play Magic against one or more online players or computer opponents.