I cheated and looked at the walkthrough after like 4 hrs. since last I played through in 0.5. But... Honestly, don't use the walkthrough, its way more fun f***ing up and finding out afterwards lmao ( maybe except for what to buy at chop chops cuz... well chop chop)
I think, it can easily be like 20 hrs play time if u actually tried to explore all the options