Thank you for checking it out and taking the time to leave feedback!
Yes, currently there is no consequence for missing the deadline. I just ran out of time to implement that. Once the voting period is over I will update it.
I also ran out of time to implement a controls page in the game menu. I can see how you would get stuck, not knowing how to use the inventory system / combining items. That's frustrating, sorry about that!
I appreciate the feedback about the full-screening behaviour making that difficult to refer to controls on the game page when playing.