I wanna play some single player and wait till ladder reset. Do I need only normal D2 LoD, and type "players set to 8" to make that work? Or do I need some mod or whatever?

Welcome to the dark side!

Hit enter in-game and type /players8

No mods needed

If you want ladder runewords for SP you can activate them via a text file. Won't affect Bnet account at all. There's a sticky on how to do it here somewhere...

This post was edited by Mukhalif on Mar 23 2019 03:51am

Thanks <33

Ehm, one more Q. Can you mule at all on SP?

Nope
Unless you download something called plugy (I think)

you can use hero editor to export and import items