Rust Rewrite, Postgres Exit: Blitz Revamps Its “League of Legends” Backend

Blitz rebuilt its League of Legends backend to handle massive write-heavy workloads and real-time game overlays. The team migrated from Postgres and Elixir to Rust and ScyllaDB Cloud, eliminated Riak and most Redis usage, and replaced 100+ cores of microservices with just four Google Cloud nodes. The result: lower latency, 5K ops/sec at under 20% load, simpler ops, and reduced infrastructure costs.