Ok, so what game have you played - that had the biggest emotional impact on you?
Valkyria Chronicles 4.
I still feel the emotional strike that was unexpected. Not to mention that otherwise I feel basically nothing about ones and zeros in videogames, but the storywriters lured me into characters and then stabbed me in the heart. Note that I used the original voiceover with subs. I have no idea if that could be possible with once again ridiculous dubs.
Watching the intro after completing the game (means *all* sidequests and all achievements not just fastrun the main story), I get even more emotional.
While I can nitpick a few things in VC4 that could have been less clunky (and are clunky because mushrooms generally ruined videogames design), no other game managed to bring me to tears. As such it deserved 10/10 from me.
EDIT:
Seeing some people talk about shockers and suspense…
I remember jumping off my chair a few times while playing Clive Barker's Undying.
Other games that tried jumpscares on me were pretty much junk with hammering my speakers and hurting my ears. Undying does it silently and when it does, ouch.
But that's kinda reflex after tension, not really on emotions side.
EDIT2:
Forgot another example, Tomb Raider reboot. Every time Lara dies it's shown on screen and I feel the pain myself. Because I couldn't believe it's happening to me, I tried to let Lara die by all possible means. And devs knew it, all the time you find new animated cutscenes of her horrible death!
And another, Icarus landing system in DX:HR (not in MD). Every time I'm falling off the building my gut squeezes as if it was me.
Still, the biggest impact stays with VC4.