Kreator "Phantom Antichrist" 2012
This is basically a understood staple of Thrash metal. Flawless
Gama Bomb "Tales from the Grave in Space" 2012
Another amazing Thrash Album this year (whether or you consider it Retro or not)
Napalm Death "Utilitarian" 2012
One of my Top 5 albums this year, worth listening to if your a fan of them. I will agree however that their new style present in the last couple of albums is more listener accessible. But with all good bands evolution of sound happens and it in no way disappoints.
If These Trees Could Talk "Red Forest" 2012
i would classify it in post-rock. For fans of Explosions in the Sky, This Will Destroy You.
they sound similar to them but i would say in some ways are more individual, worth a listen or two.
Beneath the Massacre "Incongruous"
Ive found that many people tend to overlook this band and say every song sounds the same. Either way in my opinion they bring it once again following up their previous effort "Dystopia" which was a full length and not the EP that came out in 2011
Marduk "Serpent Sermon"
This Album Is Fast as Ever for this Band. Worth listening to a couple of times if your into the genre
And but of course there are honorable mentions
Meshuggah "Koloss"
Torche "Harmonicraft"
In Mourning "The Weight of Oceans"
Ne Obliviscaris "Portal of I"
Wodensthrone "Curse"
Torture Chain "Time is But a Doorway to the incinerator"
Irreversible "Ashes"
Pallbearer "Sorrow and Extinction"
Addaura "Burning for the Ancient"
Fire in the Cave "S/T"
many more......
hope you enjoyed at least one of these. maybe if not all of them