I think the problem is that the reviews simply aren't all that interesting to read. You need to use compound sentences, dude. Try taking two sentences and throwing a comma and a conjunction in there. I'm not trying to be patronizing or anything, but I think most people enjoy sentences that are longer than five or six words; if you're going to rattle off short sentences about what you like and dislike about a game, it might be best to use a pro and con format, with bulleted lists, and go into more detail in the paragraphs.
I hope you don't think I'm being insulting. It's just that I've written a few reviews myself, and I think getting constructive criticism from an objective source can help a lot. And if you really want to take it to the next level, you'll need to get some kind of punctuation and usage guide, like a Writer's Reference by Diana Hacker.
I'm not above pimping myself, so I'll throw out a recent review I did, that I think is somewhat good.
http://www.stratosgroup.com/reviews/games/devilmaycry/You're obviously focusing on a specific aspect of games, their morality, which I think is admirable, but I think making it more readable all-around will attract more visitors to your site. Again, I hope you don't think I'm sitting on a high horse, but being an English major and all, I really can't help but use my little red marker.