Polygon Reducer makes it easy to optimize your game - simply drag the reduction slider and watch your mesh be transformed in real time. It works both at runtime and in the editor!

Supports:

All Long Term Support (LTS) versions of Unity;
All render pipelines: Built-In, URP, HDRP, and SRP;
Skinned models with animations;
Models with any number of submeshes.

And also:

Preserves all mesh data: UVs, normals, tangents, bone weights, and more;
Has a low memory footprint;
Creates reduced meshes at runtime - no need to store them in your disk!

You can easily set up LOD components with Polygon Reducer - simply clone the original mesh, add the Polygon Reducer component to it, and then use the cloned object as a renderer on the LOD component.

Try it now and start adding more objects to your scene - all while keeping a steady framerate!