Mirror networking transportCase studyConnor Myers / Metater

MetaFizzySteamworks

MetaFizzySteamworks is a single-file alternative transport for Mirror projects that use Steam networking, built from the practical needs of shipping multiplayer games.

01 / Challenge

The problem

Extend the established FizzySteamworks approach while making connection policy and operational behavior easier to control in a real project.

02 / Responsibility

What I owned

  • Transport rewrite
  • Steam P2P integration
  • Whitelist and blacklist controls
  • Async connection and callback handling
03 / Decisions

Implementation choices

  • Keep adoption possible through one inspectable source file
  • Separate trace, warning, and error logging
  • Make server policy explicit
  • Retain compatibility with Mirror's Transport contract
04 / Outcomes

What the structure enabled

  • A reusable developer tool available as a public GitHub Gist
  • Inspectable implementation without an additional package runtime