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Asked: 2026-05-23T12:01:00+00:00

I’m about to release a MMORPG. In my game, every 1 second, each player

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I’m about to release a MMORPG. In my game, every 1 second, each player sends 30 TCP messages and gets back from the server 30. Every message is not really long. Like 20~ chars.

the point is that I never got my hands with multiplayer games. I have programmed all the server and client, but I don’t know what server I’m gonna need. I mean, RAM, CPU, etc… I still don’t know what to be ready for, but let’s say for 15K same-time clients. As said, every 1 second every client need to get and send 30 TCP messages, and in the most cases I need also to update my non-SQL DB with the data.

Update: It’s a multiplayer game, I must have 30 msgs/sec. Most of the msgs are for the current position of the player. Also I’m using C++.

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  1. Editorial Team

    It depends on what your (already implemented) server requires. You’ll never know until you try some particular hardware. Rent a powerful dedicated server for a month and profile your game server. At least just check CPU usage. You’ll need multithreaded asynchronous networking.

    Details you provided help only to calculate how much bandwidth you need:
    ~94 bytes (TCP + IP + Ethernet headers) + ~20 bytes (your data) = 114 bytes every packet * 30 per second * 15000 users = ~50MBps * 8 bits = ~400Mbps of both incoming and outgoing traffic. Seems you’re in troubles here. Consider something wiser than sending your every packet in separate TCP frame. E.g., implement buffer that collects data ready to be sent and is filled by your game logic threads and separate thread that sends this data to network. In this case your several soft packets can be combined into one TCP packet greatly reducing your bandwidth requirements.

    But even after this you’re still in troubles. I’d recommend to wait for users first before investing into complicated solution. When you’ll have them you’ll need to implement some kind of clustering. It’s separate story, much more complicated than simple networking.

    Try to handle at least 1K users by single server. This can bring you some money to hire somebody experienced in game networking/clustering.

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