Ordinary Birch World's here

Okay but why is it updated to 3.6.0..?

Lang files are somehow broken in my game. To fix this on spot, copy lang file from other mods and replace text entirely, then delete original.

@DanMycroft
no, you use it with the previous version.

The newest Stellaris version is 3.6
Gigastructures only works on 3.6, so they release the last version that worked on 3.5, and it's the "Legacy" version. For use on saves that you don't/ can't update to 3.6

Sorry, it's my first time using legacy mods - is this supposed to be used with the current version, and not standalone? I'm getting a lot of missing names

Finally thank you !