building gets xp from working and level up
Mods introducing new content into the game.
New ways to deal with enemies, be it attack or defense.
New Ores and resources as well as machines.
Furnaces, assembling machines, production chains.
Do you need help localizing your mod into Russian?
Sure!
@malomaster often pushes some https://github.com/millerscout/MMD-Factorio-Mods/issues/17
