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ARK: Survival Evolved server RAM: how much do you need?

Survival Evolved is lighter than Ascended, but it has the same underlying behaviour: memory rises as tribes build and does not fall again.

170 Players
Server Scope / Mods

Recommendation

You need a server with at least

8GB

Engine / Base OS:
6 GB
Player Overhead:
+2.0 GB
Estimated Raw Usage:
8 GB
Suggested cores:
4
Disk to allow:
40 GB+

Single-thread bound. Large tribe bases hurt tick time more than player count does.

View 8GB Plans

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What uses the memory in ARK: Survival Evolved

The engine and map account for the starting figure; everything beyond that is build-up. Each placed structure and each tame is a persistent entity kept in the save and in memory, so a server's usage depends on how long it has been live much more than on how many people are playing. Heavier maps and modded configurations add several gigabytes to the base map before the first player joins.

ARK: Survival Evolved server RAM by player count

The calculator above, run for 4 common sizes. Each figure is rounded up to a plan size people actually sell.

PlayersThe Island (Base)Light Mods (1-30)Heavy Mods / Gen2
188 GB12 GB16 GB
208 GB12 GB16 GB
3512 GB12 GB24 GB
7016 GB16 GB24 GB

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Where people get it wrong

Planning around a new map. What counts is the requirement after three months of tribes building, and the dependable way to cap it is a structure or tame limit — more memory only delays the problem.

Mods and clusters

Steam Workshop mods are listed in ActiveMods under [ServerSettings], and each adds memory and startup time; large map mods and creature packs cost the most. A cluster multiplies everything: every map is a separate server process with its own world in memory, so three maps need roughly three times the memory of one, not a little more.

Linux needs a higher file limit

The Survival Evolved server opens a very large number of files at once, more than a stock Linux install allows a single process. Setup guides raise the system-wide limit with fs.file-max (100000 or more) and the per-user nofile limits in limits.conf. Without that, a server can crash on startup or partway through loading in a way that looks like running out of memory, when memory is not the problem at all.

Rather not run the server yourself?

These tools are free and funded by the two hosting services we run. If you want a server that is already set up, here they are.

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