How Much RAM Does a Satisfactory Server Need?

“How much RAM do I need?” is the first question everyone asks before buying a Satisfactory server. The short answer is 8GB to start, 12GB once your factory gets serious, and 16GB+ for mega-factories. But the real answer depends on what you’re building - and factory complexity matters far more than player count.

Satisfactory’s 1.0 release brought the RAM requirements down from the early access era (where 12GB was the minimum), but the game’s appetite still grows fast as your factory scales. Here’s what actually drives memory usage so you can pick the right plan.

Quick Reference: RAM by Factory Stage

These are starting points, not hard limits. Every factory is different, and your specific layout matters more than what tier you’re on.

Why Factory Complexity Matters More Than Player Count

This is the thing most RAM guides get wrong. A 2-player mega-factory will use significantly more RAM than an 8-player server where everyone is still in early game. The server doesn’t care how many people are connected - it cares how much world state it needs to track.

The biggest memory consumers:

• Conveyor belts and pipes - every belt segment, splitter, merger, and pipe junction is an object the server simulates. Higher-tier belts moving more items per minute use slightly more memory than Mk.1 belts.
• Machines - constructors, assemblers, manufacturers, refineries. Hundreds of them add up.
• Vehicles and trains - pathfinding and route simulation. Trucks are especially expensive because they recalculate routes constantly. Trains are more efficient per unit of transport.
• Drones - each active drone route adds simulation overhead.
• Fluid calculations - pipe networks with junctions are computationally heavier than belt networks.

Two players building a mega-factory with 2,000 machines will use more RAM than ten players who just started and are hand-crafting iron plates.

The Memory Leak Reality

Satisfactory’s dedicated server has a known issue with gradual memory growth over long sessions. Patch 1.1.2.0 (November 2025) fixed the worst leak - a blueprint-related bug that caused crashes during extended sessions. But the server still accumulates memory over time, especially on multi-day uptimes.

The fix is straightforward: scheduled restarts. Satisfactory has a built-in auto-restart feature (Server Manager > Server Settings > Server Restart Interval). The game auto-saves before restarting and loads the latest save on startup. Most server operators run daily restarts. Heavily loaded servers benefit from every 12 hours.

Autosave RAM Spikes

This catches a lot of people off guard. During autosave, the server serializes your entire factory state to disk. This temporarily spikes RAM usage by 2-4GB above your normal baseline.

If your server is already using 10GB of its 12GB allocation, an autosave spike can push it over the edge and crash the server. This is the most common cause of “my server randomly crashes” reports.

Two things help:

• Leave headroom. If your server averages 8GB usage, a 12GB plan gives you room for autosave spikes. Running at 95% of your allocation is asking for trouble.
• Increase the autosave interval. The default is every 5 minutes (300 seconds). For mid-to-late game factories, bumping this to 10-15 minutes reduces how often those spikes happen. You can change it via the console command FG.AutosaveInterval 600 or in GameUserSettings.ini.

The tradeoff is obvious - longer intervals mean more lost progress if something goes wrong. But a crash during autosave is worse than losing 15 minutes of building.

When to Upgrade vs When to Optimize

Not every performance issue is a RAM problem. Before upgrading your plan, check whether you can optimize your factory:

Try these first:

• Replace parallel low-tier belts with fewer high-tier belts
• Switch truck routes to train lines (trucks are expensive to simulate)
• Reduce pipe junction complexity where possible
• Increase your autosave interval if you’re seeing spike-related crashes
• Set up scheduled restarts if you haven’t already

Upgrade when:

• Your server is consistently using 80%+ of allocated RAM outside of autosave spikes
• You’re already running daily restarts and the memory still climbs too fast
• You’re planning to significantly expand your factory (new production wings, full map logistics)

Our Recommendation

For most Satisfactory groups - a few friends building through the tiers together - 8GB gets you started and 12GB carries you through mid-to-late game. If you’re the type to build a mega-factory that covers an entire biome, budget 16GB.

The game’s RAM needs will grow as your factory grows. That’s not a problem to solve, it’s just how Satisfactory works. Starting at 8GB and upgrading when you need to is a perfectly valid approach.

At WinterNode, all game servers are $1.99/GB with no extra charges for CPU, storage, or features that other hosts charge separately for. Get your Satisfactory server → Upgrades are instant - no migration, no downtime. Start where it makes sense and scale when your factory demands it.