You have to not use the bomb and make the right choices to return where you were. Then Luke will call for Alon who will help with the monsters. Don't know if it needs anything else, I was just doing the to do list in every route and was able to call for help
Viewing post in Shelter (Furry Visual Novel) comments
I'd like your help please. I wanna save Cooper in Rune's route. So I've done the to-do list entirely (not counting all the barkest corners) and I still can't save Coope in the end, it says he wasn't in his bed and there were no traces of Alon either. What do you mean by returning where I was? Return where exactly? And how do you return to the place you're talking about? What monsters is Alon going to help with? In the garden? And just to be super specific you're not supposed to use the bomb on the door when escaping the baths right (I assume so)?
Well, one at a time. The bakest corners are important, some information you only get from Alon there. Go to them, especially the ones because of Cooper. To save Cooper you will make a path with some turns until getting him, you'll have to come back all the way correctly, choosing the opposite directions from the ones to arrive in that room. In the last room moving back, Alon will help you, since Cooper is down and you are outnumbered. And last, yes, if you don't use the bomb to blow the door, Alon will appear to help you, so he will be near after you leave the bath and go to save Cooper, at least I think that makes him stay close. If you try to save him without Alon, Cooper will make a sacrifice for you and die.