Adds friends
Mods introducing new content into the game.
Change blueprint behavior.
After base update 1.1.43, using this mod will cause the game to crash. This is a screenshot
https://drive.google.com/file/d/11bJ0PPsj4SEgmOy0YybfngtTcsujByd9/view?usp=sharing
This is the result of a bug in 1.1.43. https://forums.factorio.com/viewtopic.php?f=30&t=100394