A multiplayer gaming server with 99.9% uptime

Not the kind of project that closes B2B deals — but the most honest reference I have. Four years running a live system used by a few hundred people, where every bug is felt the same evening and there's no QA team. 99.9% uptime speaks for itself.

Built and operated in my spare time. The constraints are unforgiving: state has to be authoritative on the server, latency budgets are real, exploits get tried in production, and the user base lets you know — loudly — when something has broken.