You seem to be trying to say...
... that there is no free will. I can somewhat understand why people lean toward that way of thinking, but the basic fact of the matter is that, whether we have "free-will" or not, whether things are pre-destined or not, it's all just different ways of stating the same thing - that is, you can't change what has already happened. You can't. End of story. Sure you can pick up the pieces and try again if something goes wrong... but what you did originally in each instance is done, and can't be retracted. You get one chance to make every decision in your entire life.
Could you have done something differently for a given situation? Most likely, yes... but it's a moot point. You CAN'T have done something different because you did what you did during that time, and that time is gone. That certainly doesn't mean that, the first time through, you weren't making your own decisions, and acting on your own "free-will". You likely were... but you did what you did, and that's over.
I don't believe that free-will is an illusion. You have a choice... it's just that you only get one shot to make it. And saying that there is no free-will is a cop-out for what people who believe that really want to say... which is that they feel they shouldn't be held accountable for their actions because, ultimately, they feel someone else was pulling the strings. And that... is crap. Just own up, for God's sake, and stop being a pussy.
And otherwise, the idea behind it was sound, and clever, and all that. And the execution was good, the mechanics of the game hearty and entertaining. And the ultimate realization at the end (the ever-popular "twist" - if you will), while I didn't agree with the point made, was still brought on with enough poignancy for me to give a nod to you, certainly. Nice job.