7 Days to Die server RAM: how much do you need?
Every seventh night 7 Days to Die hits a memory peak you can see coming, and that peak — not a typical evening — is what the server has to survive.
Recommendation
You need a server with at least
6GB
- Engine / Base OS:
- 4 GB
- Player Overhead:
- +1.6 GB
- Estimated Raw Usage:
- 5.6 GB
- Suggested cores:
- 4
- Disk to allow:
- 15 GB+
Horde night is the peak — zombie pathfinding is what saturates the CPU, not normal play.
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What uses the memory in 7 Days to Die
Its voxel terrain is destructible everywhere, so each dug hole and each placed block is a lasting change the server keeps track of. Layered on that slow growth, the Blood Moon drops a big horde of zombies into the world at once, each simulated individually, which makes horde night the true high-water mark.
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Where people get it wrong
Sizing for the average. A server that coasts through six days can run out of memory on day seven and corrupt the save on its way down. Overhauls like Darkness Falls push up both the everyday level and the horde-night peak by a wide margin.