>What is exactly the difference between "hardness" and "lock level bonus"?
lock level bonus - as is. Flat level bonus for this specific building. Basic lock level specified per faction in faction settings.
hardness - it's about how hard to break lock with strength or tools. For strength game uses hardness*3 value. And for tools game uses hardness*10 for timer.

Also, each faction have this settings, that affect locks:
1. cages lock level - base lock for all cages
2. containers lock level - base lock for all storage buildings
3. doors lock level - base lock for all doors
4. lock level random - randomized lock value for both sides. So if you write here 10 - this means that lock can be randomized by +-10.

In conclusion, lock level = faction lock level + lock level bonus(from building) + randomized value from faction.
And for strength/tools it uses just hardness

> Is possible with this mod to find locks of 90?
Yes. Ancient safe can have up to 90.

Nice, just imported to try it. Could you give a quick explanation of the changes in the fcs? and how did you make it so strenght is viable and still upgrading the difficulty?
What is exactly the difference between "hardness" and "lock level bonus"? How do each work individually and in conjuction? I read the fcs but it doesn't seem clear to me. some values (i don't mean barrels) are lower than vanilla, which surprised me, i imagine is because the lock level bonus.

Is possible with this mod to find locks of 90?

The info would be valuable in case someone wants to further edit it to their liking. Thank you so much for your work and sharing it!

Nice