How much RAM does a 7 Days to Die server need?
7 Days to Die has a predictable memory spike every seventh night, and that spike is what you have to size for.
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.
View 6GB PlansWhat actually drives 7 Days to Die memory use
The world is fully destructible voxel terrain, so every hole dug and every block placed is a permanent change that must be tracked. On top of that steady growth, Blood Moon spawns a large horde of individually simulated zombies at once — the server's peak requirement is horde night, not a normal evening.
The mistake to avoid
Sizing against average use. A server that runs comfortably for six days can run out of memory on the seventh and take the save down with it. Overhaul mods such as Darkness Falls raise both the baseline and the peak considerably.