Atari experienced some moderate success with Ghostbusters; The Video Game and apparently they are ready to milk the license a bit more with the downloadable Ghostbusters: Sanctum of Slime on PC, PSN and XBLA next spring.
Naturally it's a simpler game this time around and we'll get a a topdown view of the ghostbusting with a four player co-operative mode on offer both online and offline. Sounds rather interesting to us...