All Polygon reduction

Blender Development Fund
Asset Library
Blender Development Fund
Asset Library
Lod Builder – Blender Addon for Game Asset LOD Generation
$4.99 Dev Fund Contributor

3D Skill Up in Addons

OptiMesh Pro
$10

DC Labs in Addons

insideOUT - Delete Inside Geometry
$9.99-$45.00 Dev Fund Contributor

kleinARt in Addons

Polygon Crusher 9000
$16.99

Hlopes in Addons

Decimate Pro
$7.50 Dev Fund Contributor

Impression Sunrise in Addons

LS - Pro Auto LOD Generator | Professional Level of Detail System for Blender
$39.00-$130.00 Dev Fund Contributor

Ludiax Studio in Addons

Exact Decimate: Triangle Count Precision
$2 Dev Fund Contributor

Corey Kinard in Addons