That's great, but protobufs is slow as shit. I wouldnt use it in games. If I was using something slow that needed flexibility I'd probably go with Avro since i

That's great, but protobufs is slow as shit. I wouldnt use it in games. If I was using something slow that needed flexibility I'd probably go with Avro since it has more powerful scheme evolution. If I wanted fast I'd probably use SBE or Flatbuffers (although FB is also slow to serialise)