"Lag" is really three different problems, and two of them live on your side of the screen. Find out which one you have, fix it, and see how your base affects everyone around you.
Ask in chat. If everyone feels it at once, it may be the server.
Fix Your FPS
Rust is one of the heaviest games on PC. Most FPS trouble comes down to memory, storage, or a few expensive settings. Start with the memory check.
RAM Budget Check
Click what you have open while you play
Installed RAM
Running at the same time
0
20 / 16GB needed / installed
Turn on JavaScript to use the budget check.
Typical figures, and yours will differ. Rust normally sits at 12 to 14 GB and takes more when more is free, so 20 GB or more on a 32 GB or 64 GB PC is normal. A video tab or a busy Discord costs more than shown. For your real numbers press Ctrl + Shift + Esc and open the Processes tab while Rust is running.
01
RAM: the number one cause
Biggest winFreezes and hitching
Rust loads a huge amount of the world into memory. The official minimum is 12 GB and the recommended amount is 16 GB, and Rust on its own normally uses 12 to 14 GB.
"Minimum" means the game will start, not that it will run well. Game requirements are quoted as low as possible, because a lower number on the box sells more copies. They assume a clean PC with nothing else open. No browser, no Discord, no overlays. Nobody actually plays like that.
When memory runs out, Windows starts using your disk as overflow. Disk is far slower than RAM, so the game freezes for a moment every time it happens. That freeze is what most players call lag.
Close your browser before you play. It is usually the biggest hog.
16 GB: run Rust and very little else.
32 GB: the comfortable amount for Rust.
8 GB: below the minimum. Expect constant freezing.
02
Install Rust on an SSD
Big winLoad times and stutter
Rust keeps loading things from disk while you move around. On an old spinning hard drive that means very long load times and stutter every time you enter a new area.
Rust's own system requirements call for an SSD. If Rust is on a hard drive, moving it to an SSD is the cheapest upgrade you can make.
In Steam: right click Rust, Properties, Installed Files, Move install folder.
03
The settings that matter
Free FPSGraphics options
Do not lower everything. Lower the expensive ones first, test, and stop when it feels good.
Shadows
Huge
Draw distance
Huge
Water and reflections
High
Object and tree detail
High
Anti-aliasing
Medium
Anisotropic filtering
Medium
Grass
Small
Motion blur, depth of field
Small
Near big bases the first two do the most. Shadows and draw distance decide how much of that base your PC has to draw.
Have an RTX card? Turn on DLSS in the graphics options. It is the closest thing to free frames.
04
Short freezes every so often
StutterFPS looks fine between them
If the game runs well and then hangs for a split second, that is usually one of three things:
Memory is full. See the RAM check above. This is the usual one.
Rust is on a hard drive. See number 02.
Memory clean up. Rust pauses briefly to clear out old data. With 16 GB or more you can make that happen less often: press F1 and type gc.buffer 2048.
The first few minutes after joining are always rougher while the game loads everything in. Judge your FPS after that, not before.
05
The PC checklist
10 minutesWindows and drivers
Update your graphics driver.
Turn off overlays you do not use: Discord, Steam, Xbox Game Bar.
Windows power plan set to High performance.
Laptop? Plug it in. Battery mode slows everything down.
Check temperatures. FPS that gets worse the longer you play means overheating. Clean out the dust.
Turn on XMP or EXPO in your BIOS so your RAM runs at its real speed.
Verify game files in Steam if things broke after an update.
Restart your PC if it has been on for days.
Fix Your Connection
Rubber banding with a good FPS number is almost always the path between you and the server. If it only happens to you, start here.
Use a cable
Wifi drops and delays data even with full bars. A network cable is the single best fix for rubber banding.
Stop the downloads
Game updates, streaming video and cloud backups on your network all fight Rust for the same line. Check other people in the house too.
Turn off the VPN
A VPN sends your traffic on a detour. Turn it off for Rust and see if the rubber banding stops.
Restart your router
Unplug it for 30 seconds. It sounds silly, and it fixes more than it should.
Distance is real
The farther you live from the server, the higher your ping. A steady ping is playable. A ping that jumps around is the problem.
The server never draws your screen. Its job is to keep track of the world and tell every player what changed.
It tracks every object
Every wall, box, plant, animal, dropped item and vehicle is an object the server has to remember. A busy wipe has hundreds of thousands of them.
It does it in one line
Most of the game's thinking runs through one single queue. More hardware cannot split that work up. Less work in the queue is the only real fix.
It tells everyone near you
Every change in your base gets sent to every player close enough to see it. Crowded, busy areas cost the most.
Our Side
Each Zombie Land server runs alone on its own dedicated machine, and we watch its numbers around the clock. If the server itself is struggling, we usually know before you do. Still think it is the server? Tell staff when it happened and what you were doing. That is what lets us find it.
What Your Base Costs
Everything you place costs somebody something. Some things hurt the frame rate of everyone nearby. Others add work for the server. Most of our deployable limits exist because of this list.
Ceiling lights
The worst light in the game for frame rate because of the fog effect it draws. Buy simple lights from /s instead.
Every piece in view gets drawn by every player who can see it, from a long way off. An empty castle is cheap for the server and still brutal on frame rates.
A steady circuit costs very little. Fast timers, blinkers and loops that switch on and off nonstop flood the server with updates. Keep circuits simple and stable.
The bars show rough scale, not lab measurements. Limits are counted server wide across all of your bases.
Myths, Busted
Click a card to flip it.
The Good Neighbor Checklist
Eight habits. Tick the ones you already do. Your browser remembers them.
0/8Habits
Fresh spawn
System requirements are the ones published by Facepunch for Rust. Still stuck after trying all of this? Ask in Discord and tell us your FPS, your ping and how much RAM you have.
