Built a 10k-Player Game Server in Elixir. I Don't Speak Elixir.

I Built a 10k-Player Game Server in Elixir. I Don’t Speak Elixir.

A few weeks back I started a real-time multiplayer game server. It’s an Elixir umbrella with nine apps. It handles 10,000 concurrent WebSocket connections on one node, p99 place-bet round-trip under 3 milliseconds. It’s multi-tenant, multi-node, cluster-aware. 364 tests + 1 property plus a small Python pytest suite for the reference operator. Eleven feature tiers shipped, all closed, all green.