You have a small problem that you need to fix before it becomes much larger.
What I'm referring to is the fact that both Zombie's Retreat and Town of Passion are not finished from a professional point of view, and if this problem continues in your other games, it will eventually cause your player base to gradually dwindle and fade away.
With Town of Passion there is an in-game hint of impregnation with Mary, but no actual event involving it. This means that you not only left one main character's story unfinished, you also neglected the other main characters. Furthermore, what you call the ending and epilog is really just the falling action. A proper ending is a summarization of the players choices and their immediate results, while an epilog is not right after the main story ends, it's anywhere from a few hours to a few days after the proper ending. For Town of Passion it needs to be at least a few months later to show the results of all the players choices.
Zombie's Retreat has many of the same problems as Town of Passion. The only differences being that there are two impregnation events as apposed to none in Town of Passion Zombie's Retreat is also completely missing a proper ending scene. On the bright side, these are the only problems with Town of Passion and Zombie's Retreat. You could probably fix all of the issues I mentioned in one update per game as well. So long story short, finish these two games and avoid making the same mistakes again.