Unfortunately, I can't reply to comments right away; I'm working every day.I'll try to reply more often. If you have any problems with the game, let me know, and I'll try to help as best I can.
In the room with the cross, in one of the corners there is a bolt cutter, it is needed to remove the lock from the door, and further across the courtyard there is a room with this key for it.
Thank you very much. These are my first projects, and there are many flaws and strange solutions, as well as optimization problems. But I am very glad that you liked the game)))