Very low backpack. Why should i pay money for backpack. Even crates are smal too disaster. The crate uprade is very bad because it adds only 1 slot every time. And i have to build 5 small crates and im confusing about my items. I have to check all crates everytime to fine my items and again i have to check all crates to store all my backpack items. If there wasnt a backpack and crate problem i would continue but unfortunately it becomes boring because i should just think about slot problem.