Hey! The simple answer is that I don't exactly know. Like many devs, I do have a plan for the game itself, but the finer details such as exactly what happens on each in game day aren't planned ahead of time, so I don't know exactly how many days are going to take place. I also don't currently have plans for a sequel. I have thought about what comes next after TNT, but not in depth, as I prefer to focus my attention on this one. I expect this will remain the case until quite late in development.