I recently started worrying about Catoshi Nakameowto. Last year, WIRED purchased its resident CryptoKitty, a cartoon cat with tiger stripes and trembling eyes, for $1.05. Since then, we haven’t seen her much. A so-called “digital collectible,” she lives a lonely life in perpetuity at an address on the Ethereum blockchain: You can look at her, but little else. Soon, though, her digital life could gain a bit more excitement—in the hands of game developers.