Rust Server Calculator

Reducing RAM usage can be achieved through several key methods. The most effective approach is reducing your Rust server map size using +server.worldsize (try 3000 instead of the default 4000).
For entity management, consider plugins like Entity Reducer to limit naturally spawning items, or Remover Tool to help players clean up abandoned structures.
You should also review memory-intensive plugins - remove or replace heavy automation plugins like QuickSmelt, Furnace Splitter, or Auto Recycler, and consider lighter alternatives for teleportation systems like NTeleportation instead of feature-heavy options.
Additionally, lowering your max player count and reducing +server.maxentities can provide significant RAM savings.

Physgun Optimizations, otherwise dubbed as Physgun Utils is a set of tools developed in-house by Physgun reducing overall engine bloat, and improving performance!

Realistically, minimum RAM usage should be around ~8GB, this with zero plugins, a smaller map (less than 3000x3000). Here at Physgun we exceed the minimum RAM requirements with our starter plan going to 10GB of memory for your server to use, allowing you to build your empire without interruption.

High-performance, single threaded CPUs should be your absolute top priority. For example here at Physgun we only use the OC AMD Ryzen 9 9950X for our Rust server plans, as we see this as the only acceptable option since it is one of the most popular CPUs our largest communities use.