Corpsessed was spawned from putrescent slime in 2007. Vocalist Niko Matilainen, guitarist Matti Mäkelä and drummer Jussi-Pekka Manner were joined by guitarist Jyri Lustig and (de)composing of morbid death metal tunes began at the rotting houses of Järvenpää delta-area.

The group's original bass player Mikko Mäkelä disappeared in unknown circumstances, but was replaced later in 2009 by Mikko Pöllä.

Corpsessed's first EP The Dagger & The Chalice was released on CD by Dark Descent Records (USA) in May 2011, vinyl version released by Me Saco Un Ojo (UK) in co-operation with b]Dark Descent Records[/b] (USA) in October 2011. The bands second release was a 2 track untitled 7" EP in 2012.

Currently Corpsessed are writing their debut full-length album.