Games with no release dates - where are they?

Hey. After having discovered that games need to have a release date in order to be reviewed, I have vowed to venture forth and find release dates for some of those games that are still missing it. 
 
...but I can't find them. I know there are a bunch, though. Is there any specific way to get a list of games w/o release date?

There is no list of them on Giant Bomb, but you'll probably be able to find them using the API. I know very little about the API though, so I can't help with any specific stuff.