Just give a quick "oh, thank you" in a pleasant, surprised tone. Comes off as gracious, but not conceited. Unless it's something you can't help, then it's more charming if you act like it's a skill in a cheeky way. I.e "wow you're tall"
"Thanks I've been working on it"
It's worth noting, you'll come off as more awkward if you try to fire back a compliment yourself. It came organically to them, and isn't necessary to mirror, unless you feel like they're fishing.
I would have said dead space until the remake came out and blew me away. So if the devs really care about it no game is untouchable to me. You can always play the original.