Config Tuner

Answer a few questions about your machine, load your client.cfg (optional), review every recommendation with its reasoning, tick what you want, download the tuned file. Or skip the file and download a recommended baseline directly.

Everything on this page runs in your browser. The file is never uploaded anywhere - there is no server to upload to. The tuned download changes only the lines you explicitly tick; every other setting in your file is preserved as-is.

1. About your machine

Monitor refresh rate (Hz) The rate your monitor actually runs at - check the refresh rate entry first if unsure.

GPU NVIDIA AMD / Intel fps.limit is the frame cap for everyone; NVIDIA additionally unlocks an optional Reflex-based cap below.

I use -cpu_affinity in my Steam launch options See the launch options entry. Leave unticked if unsure.

2. Your client.cfg (optional)

CLOSE Rust first - the game rewrites client.cfg when it exits, so a file grabbed while Rust runs goes stale the moment you quit. Then: Steam > right-click Rust > Manage > Browse local files > open the cfg folder > client.cfg. Drop it here or paste its text. (The keys.cfg next to it is your keybinds - nothing to optimize there, this tool does not touch it.) Without a file you still get the recommended baseline below.

Drop client.cfg here or click to choose the file

Or paste the file contents

3. Review

4. Download

The tuned download is YOUR file with only your ticked changes. The baseline is different: a fresh file containing ONLY the recommended lines - installing it over your existing client.cfg discards your other settings and Rust regenerates its defaults. Use the baseline on a fresh install, the tuned download everywhere else.

Putting it back

CLOSE Rust first. The game rewrites client.cfg when it exits - replacing the file while Rust runs means your changes get overwritten.
Move your current client.cfg out of the cfg folder and onto your Desktop - that is your undo. (Avoid renaming it in place: with hidden file extensions a rename to .bak often silently becomes .bak.cfg.)
Move the downloaded file into the cfg folder and check its name is exactly client.cfg - a repeat download becomes client (1).cfg, which Rust ignores.
Start Rust. To go back: delete the new file and move your Desktop copy back in.