Devsisters, an international gaming company based in South Korea, achieved massive success with their game Cookie Run: Kingdom, thanks in part to their strategic decision to use CockroachDB for database management. With over ten million downloads and the ability to handle 60,000 transactions per second during peak times, the game imposed far heavier transactional workloads than initially anticipated. Early in the development, Devsisters identified the limitations of Couchbase and opted for CockroachDB, which they found superior in performance and scalability compared to other options like Aurora and DynamoDB. This choice was crucial as it allowed the game to smoothly scale in response to its viral popularity, maintaining uptime and performance even as demand surged far beyond expectations. Devsisters' decision to architect for scale from the outset, combined with the engaging nature of the game, ensured that they could accommodate the influx of players without technical disruptions, underpinning the ongoing success of Cookie Run: Kingdom.