Rust Server RAM Calculator

Rust servers are more RAM-hungry than many other games. A basic server with a default-sized map starts at 6GB, and 8GB is the realistic minimum once it is actually populated, with 8-12GB being typical. With more players, plugins and larger maps you can easily need the full 16GB. RAM usage also grows over a wipe cycle as players build structures across the map.

A vanilla Rust server with no Oxide plugins on a default 3km map starts at 6GB of RAM, which covers a small or lightly populated server. Facepunch themselves put the minimum at 8GB, and a default map with real players on it realistically sits at 8-12GB. Larger maps or a 100+ player server should plan for up to 16GB. Rust uses a significant amount of RAM just for the base map and entity system.

Oxide/uMod plugins add varying amounts of RAM overhead depending on their complexity. A light plugin setup (1-10 plugins) adds roughly 0.5-1GB, a medium setup (10-25 plugins) adds 1-2GB, and heavy plugin loads (25+ plugins) can add 2-4GB or more. Plugins that track player data or manage economies tend to use the most memory.

Yes! With DoomHosting, you can upgrade or downgrade your RAM at any time through your control panel. Changes take effect immediately. This is especially useful for Rust since RAM usage often increases over a wipe cycle, so you can scale up mid-wipe if needed.

Map size has a significant impact on Rust server RAM usage. A small 2km map may use 1-2GB less than the default, while a large 4km map adds 1-2GB on top of baseline. Very large maps (6km+) can add 3-4GB or more. Larger maps also generate more entities and require more memory as players spread across the world.