Rich, we get it. You've made it up in your mind that Ridley Scott has sold himself out to the gaming crowd. Okay, its absolutely unprovable, but so be it. Think what you'd like.
In terms of the tech...Ridley Scott said it himself at the Wondercon Panel "It was a conscious decision." Got it? I myself am not upset by it in the least. Why you ask? Because this is about story and not the continuity of technology. If the Star Wars prequels had good stories everything else wouldn't have jumped out at us.
In terms of character or costume design...could they have gone online to see what gamers were wearing or whattheshitever? For sure. Is that paper thin theory provable? Not in the least. Remeber what Brett wore in ALIEN? A Hawain shirt, yep, a Hawain fraking shirt. Parker wore a head band. They fit somewhat seamlessly into their character design.
Again, Ridley Scott said that they even thought about the shoelaces of the characters. That's enough for me. If you want to continue to choose to go apeshit over the peripheral aspects of this film, please, be my guest. You are not beholden to me, nor I to you. I'm interested in STORY, first and foremost. If the story is phenomenal, great, if it ends up being shit, then that would be unfortunate. For now, I'm more the pleasantly surprised by most of everything I've seen. Maybe the tech is different but the tone is pitch perfect. It looks and Feels like A L I E N.
Lastly, a 'gamer' and people who casually play video games are two different beasts. I know a lot of people who play video games, but I only know ONE true gamer, some one who lives and breathes the culture. Those are two separate ideas. The Matrix films pandered completely to gamers and the rich and eccentric gaming community and I see Zero matrix-esque musings in the look of Prometheus. I'm actually a pop culture major, surprise surprise (not that it makes me an expert) but if you're going to assert the opinion that Ridley Scott is pandering to the gaming community with the art direction and character design of Prometheus, you have to back that up, or just be proven wrong. The Matrix films, eXtisenze, the Resident Evil films (etc,..) those are films designed around a niche or a community. One character with a mohawk and some facial/neck tattoos have more in common with blue collar deployed service members then the gaming community. By that theory the prisoners of Fiorina 161 are also fashioned around the gaming community. Also, when it comes to art direction, design, and costume design, often times the people in these roles are quite a bit older and draw their inspiration from many many different aspects of plausible future aesthetics.