You need to pay to save multiple worlds. You need to pay to load autosaves, so if you afk, a couple hours later, reload the game, and you can't even access your world or progress, losing everything. Wanna use the time speed feature? Pay or watch an ad every 30 minutes to get it back. Wanna use almost any special option or build? Watch an ad to load some random three for 30 minutes (also, there's a 15 minute delay before you can watch another ad) or you can pay!! Ik they need profit, but really??