Hmmmm, Looks interestingly like L4D1-2. My only problem with it is that it hardly looks like a fleshed out game, certainly something fun to play once and awhile but how long will that last?
How long did Nazi Zombies last? That had far less depth than this does and there's still people playing it.
I just played the first Dead Space about 2 months ago. One of my favorite horror games ever, so I'm super pumped about DS2, with or without the multiplayer aspect.
It's a game on Steam (PC) and I think it's around 20 dollars. Look up some reviews/videos of it, really great praise for it so far. Even Zero Punctuation gave it a good review!