More Achievements are always welcomed. But recently i noticed occasional slowdowns/lag spikes in my game, wich are -unfortunately- related to your mod. A quick glance at your lua files suggests it is due to the tree/belt/.... checks that count every entity in the map every few minutes. Maybe they could be performed in a staggered manner.. like going through a few chunks at a time ? I am rather sensitive to lag spikes so that would be a great improvement.