As you advance in the game, you may find some requirements that you must accomplish to move on. Read carefully the dialog windows of those departments and areas you want to upgrade to know which actions should be completed before and adapt your strategy! Thanks to players' feedback, you can now use the SOLVE button, and the game will take you directly to this specific pending requirement. Easy, right?
*If you have completed all the content available, the SOLVE button won't appear since there are no more actions to do. Don't worry about that! The team is actively working on new content and areas to expand!