DayZ server

DayZ Server RAM Calculator

Based on data we collected
How it works

What Actually Uses RAM on a DayZ Server

DayZ loads the whole map and its central economy, the loot and vehicles across it, before anyone joins, which is why it needs more memory than most games from the start.

Mods are what push it up from there. Vehicle, weapon and building packs and big frameworks like Expansion add a lot, and more players mean more bases, vehicles and stashes to track.

The calculator adds those up from data we collected on DayZ servers, then leaves about 15% headroom so the server never runs right at its limit. It's a guide, not a promise, and you can upgrade from the client area at any time.

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Frequently Asked Questions

Quick answers about DayZ server memory.

How much RAM does a DayZ server need?

8 GB runs vanilla and most modded servers well, even with around 100 mods. Busy modded servers want 12 GB, and very busy servers with big content mods or Expansion need 16 GB.

Do mods use a lot of RAM on DayZ?

Yes, big content mods do. Vehicle and weapon packs and frameworks like Expansion are the heaviest.

Do community maps need more RAM?

A little more than Chernarus or Livonia, since maps like Deer Isle or Namalsk carry more to load.

Is the calculator exact?

It is an estimate based on data we collected, with headroom added. You can upgrade from the client area at any time.