This really was the best, I must say. Of all the games fics I've read so far, this is vying heartily for top position in my humble o.
I have a soft spot for fics with de-aged Snapes or Harrys, and this was one of the more interesting ways of bringing back a younger Snape. I loved the fact that you really got into the kinds of grudges that a Snape might still bear; what kinds of information he might be after, etc. And of course there were so many great ideas between magic and technology; ideas about the Elder Wand and its continued role here... and some hot smex. Very adequate. In fact, even though I shy away from longer fics these days (due to the bad influence they exert on my Waking Life™), I could have read this story expanded tenfold. Great work!