Replay IS Possible
Just open game in a new window BEFORE fininshing the game to try other routes.
As for a review, I enjoyed much of this game such as the "chose your destiny" style mixed with the knowlege that you can't go back and change anything. I find your style of gaming quite amusing. A perfect blend of retro and texture create a unique gaming experience.
It did seem a bit depressing knowing that at worst everyone dies, but at best only you (and I think the daughter too, I'm not certain) are the only ones left on earth. Was this intentional? Are you insisting that the possibility of curing a multitude of people is not even probable? But I digress...
Overall, it was a well made game with an interesting style of gameplay with a good (though unoriginal) plot line which reminded me of "I AM LEGEND." I would have enjoyed this more if I knew I can save more people through rigorous research.
Be that as it may, I am a humble review writer. Thou art the creator of the game.
7/10 4/5