This is a neat little task completion game, and it keeps you on your toes for sure. The concept is good, and I agree that adding more complexity would make it fun. Maybe adding different levels of priorities to the tasks (some drain warmth faster, some require that they be done first, some can only be done in a short window of time) would be cool, as well as having different gameplay hindering effects besides just warmth draining faster (disabling some inputs until you fix it) etc. would be cool. Lots of different things can be added if you decide to work on it further!