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by reednj 3195 days ago
I host https://babbl.xyz on DO with a single $10 server for the socket and the web, and a $10 server for mysql. This can support around 500 active players.

I also did a more action asteroids clone (http://triangle-wars.com), and this would only support I guess 50 players on a $10 server.

The limiting factor seems to be the number of packets / sec that need to be broadcast to all players. If each player is changing state 2/sec, and you have 50 players, then the sever needs to relay 100 packets/sec...

Unlike some other comments in this thread, I didn't find JSON parsing to have any effect on performance.