Via Giant Bomb: "The first episode of American McGee's Grimm is out today on the GameTap download service. It's called A Boy Learns What Fear Is, and I was all set to review it this morning--until I found out it's free not just today, but every day, from now until our Sun enters the red giant phase and engulfs the Earth in its fiery tumescence. (GameTap had previously announced that each episode of Grimm will be free-to-play for only 24 hours after its release, which is still true of all the rest of them.) Slapping a rating on what's essentially a free demo feels like a pointless exercise, so here we are on the blog."
Appspy: Grimm is a beautiful simplistic platformer with some interesting gameplay ideas, however it fails to impress with its mundane pacing that's only occasionally punctuated by fun mini-levels.
STP - Grimm is one of those games that looks so good in videos and screenshots that you go into it thinking it must be terrifically fun to play. But when you dive into its pencil-drawn world, you realize that, like the Victorian era it depicts, it's far dirtier and less grand than you'd assumed.
GameZebo - You won't find many games that make rescuing a pram laden baby from the desperate clutches of a predatory man their aim sitting happily on the App Store.