There are mechanics which discourage leaving the game running. Hunger, pal status effects, raids. Sure you could alt-tab and gain some advantage from that but i

There are mechanics which discourage leaving the game running. Hunger, pal status effects, raids. Sure you could alt-tab and gain some advantage from that but if you just leave the game off overnight I don't think you'll benefit greatly. It's a bit shit that eggs are so slow to hatch though. Feels like an hour would be a long time, I currently have one requiring 24 hours. But I think later on we'll have multiple incubators and then it won't matter that much