Satisfactory2026-07-01 · 4 min read

How Much RAM Does a Satisfactory Server Need?

Satisfactory's RAM usage is driven by factory complexity, not player count. 8 GB is fine for early-game — but the same server will OOM by phase 4. Here is the honest breakdown by phase.

8 GB

1–4 players, phase 1–2

The minimum for a stable Satisfactory server. Covers early-game bases and light automation. You will start feeling memory pressure once trains and large conveyor networks are running.

12 GB

1–4 players, phase 3

Comfortable for mid-game. Handles trains, large smelting arrays and extended play sessions without OOM hangs. Recommended for groups who plan to play through phase 3 seriously.

16 GB

1–4 players, phase 4–5

The sweet spot for long-running servers. Nuclear plants, full rail networks and automated resource extraction all run without memory pressure.

32 GB

Mega-factory / late phase 5

For players building the largest possible factories — full alien tech trees, every resource automated simultaneously. Memory footprint on a maxed-out factory can exceed 20 GB under load.

FAQ

Does factory size affect server RAM more than player count?+
Yes, significantly. Satisfactory simulates every belt, merger, splitter and machine on the server. A solo player in phase 5 uses far more RAM than four players in phase 1.
What happens when the server runs out of RAM?+
The Satisfactory server process gets OOM-killed by the OS. Players are dropped and the server restarts from the last autosave. Frequent OOM crashes usually mean you need to upgrade your RAM tier.
Does enabling autopause save RAM?+
Yes — when autopause is active the simulation freezes when no players are online, which stops the memory footprint from growing during idle time.
How often does Satisfactory autosave?+
The default autosave interval is 5 minutes. Each save writes to disk synchronously, which causes a brief server pause. NVMe SSD storage minimises this stutter.
Do mods increase RAM usage?+
It depends on the mod. Quality-of-life mods add minimal overhead. Large overhaul mods or mods that add many new machines can noticeably increase memory usage — add 2–4 GB buffer when running a heavy mod list.

Host your Satisfactory server from €22/month

CoalHost runs Satisfactory on AMD EPYC hardware in Helsinki with NVMe storage, autopause control and daily auto-backups.

View Satisfactory Hosting →

Keep reading

Minecraft

Minecraft server.properties Explained — Every Setting in 2026

12 min read

Minecraft

Minecraft Server Keeps Crashing? 10 Common Causes and Fixes

11 min read

Minecraft

How to Install a Minecraft Modpack from CurseForge or Modrinth on Your Server

9 min read