I will give you a more thorough answer later but I will tell you this right away. You had finished act 3, you were at the cutout point where you would have gotten to act 4 if everything would have been finished. Two out of three endings for chapter 1 are done (still needs some more polish) you can reach them if you use the cheating room. Act 4 is all different endings depending on choices made, but these things are still worked on.
You can also watch the two completed endings here if you are interested: