However, beware of High-Poly Hair . Some modern ports (from Skyrim to Fallout 3 ) use meshes with 10,000+ polygons. The Fallout 3 engine was not built for this. In crowded areas like Rivet City, giving every NPC a high-poly wig can cause stuttering. Stick to "medium-poly" hair mods listed as "Vanilla Friendly."
Installing a is easy, but Fallout 3 is a notoriously fragile game on Windows 10/11. Here is the safest method: fallout 3 hair mod