building gets quality up through time,only effect when machine is working
Small changes concerning balance, gameplay, or graphics.
Play it your way.
this appears broken, it seemed to work a month ago but i have yet to see anything new upgrade on a new map. also not compatable with factorissimo 3.8.13
fixed and ignore this mod machine
you can delete the "! upgradeable-quality", in factorissimo mod temporally