First thing you gotta do when you get her back to your place is to openly criticize her for her taste in 'games'. Grab her iphone and literally smash it with a hammer right in front of her.
Then you sit her down and make her watch you play the Xenosaga trilogy, or at least show her all the cutscenes.
She'll be uber impressed. Panties will go flying.
edit:
If your mutual plans thus far are 'have some drinks, then go back to your place', it's almost certainly to get down and funky if ya know'ma'sayin.
I was going to recommend something else for a first date, like going to a zoo or maybe some fun activity, like bowling, and avoiding taking her to your place at all.. but if it's bar, then your place, I'm pretty sure she just wants to get straight to sex. I mean she hasn't even met you yet and she's talking about going to your place. She may just want to get laid and the bar meet up will be a brief screening process.
In other words, all you have to do is show up and not screw it up. Don't show her video games.