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How much memory does a game server really use?

Measured on real servers, dated, and free to use. 18 games so far.

What this is

For each game we start a real server on our own hardware and watch how much memory it uses. Every number on this page is a measurement, not a guess, and it carries its date.

What it helps with

Picking the right plan size, comparing games, and checking a host's claims. If a game only uses 859 MB idle, you know you are not buying 16 GB for nothing.

What it does not tell you

These servers had nobody connected. Players, mods and long-running worlds use more, and we do not publish player-load figures because we have not measured them. How we measure.

18 games measured so far

The bar shows memory used ten minutes after the server started, with nobody connected. Click a game for the readings minute by minute.

PZProject Zomboid
Starts in 31 s, installs in 2 min 45 s
3,164 MB
V Rising
Starts in 47 s, installs in 42 s
2,865 MB
ASKA
Starts in 16 s, installs in 42 s
1,530 MB
Valheim
Starts in 16 s, installs in 1 min 44 s
1,349 MB
Core Keeper
Starts in 3 min 06 s, installs in 42 s
1,312 MB
Icarus
Starts in 16 s, installs in 3 min 46 s
1,297 MB
Palworld
Starts in 0 s, installs in 2 min 04 s
859 MB
Unturned
Starts in 16 s, installs in 1 min 43 s
828 MB
Enshrouded
Starts in 16 s, installs in 3 min 05 s
756 MB
Counter-Strike 2
Starts in 16 s, installs in 20 min 08 s
755 MB
Terraria
Starts in 31 s, installs in 22 s
567 MB
Necesse
Starts in 0 s, installs in 42 s
440 MB
Factorio
Starts in 0 s, installs in 22 s
312 MB
Barotrauma
Starts in 16 s, installs in 42 s
282 MB
Day of Infamy
Starts in 0 s, installs in 2 min 24 s
243 MB
Satisfactory
Starts in 0 s, installs in 1 min 23 s
175 MB
L4Left 4 Dead 2
Starts in 16 s, installs in 3 min 47 s
157 MB
GMGarry's Mod
Starts in 16 s, installs in 1 min 23 s
91 MB

Questions

How is this different from the system requirements on a game's page?

Those are the publisher's minimums, often for a client or for a full server. These are readings from dedicated servers on real hardware, one per minute, with the date of the test.

Why are some games missing?

Only games that finished the full test are listed. Games still waiting for a test, or that did not complete one, are left out until they do.

Can I use this on my site?

Yes. Quote the numbers and link to this page.