So this is like an online game encyclopedia?
How detailed will it be for each game? I'd assume somewhere between a cursory explanation like Wikipedia and something like Game Faqs?
Is this focused on documenting a game, or about the culture and influence of it (again, I assume some combo of the two)?
Can anyone submit a game, or edit/update a game's information?
The biggest issue I could imagine is the shear level of information needed for a site like this. When I see a site that claims to be a database of info for something I'm interested in, but I can clearly see it's really incomplete (even if it has the info I was looking for), I mentally write it off. A lack of information can be catalytic, people don't want to browse sparse sites, even if they would look at all the same pages on a fuller site.
Also interesting that you're using JS, JS and more JS. Does the site still at least function in some way or another if scripts are disabled, though? Or heck, does that even matter much in this day and age? (I guess it does; people using NoScript deliberately for their own safety and stuff)
Also add social stuff (Twitter,Facebook G+) and links to Steam, XBLive, and so on. Maybe some of them even have APIs to pull some data. (If the license allows that) to create game pages with nearly no content.