CryptoKitties - Breed and collect adorable creatures using Ethereum
Mars Genesis - 10,000 unique parcels of Mars stored on the blockchain
CryptoTwittos - Own Twitter accounts, on the blockchain
CryptoAlpaca - Adopt unique alpaca on blockchain and shear wools everyday
CryptoPunks - Unique characters you can own on the Ethereum blockchain
Loot - Loot is a bank account ledger.