Old Man's Child

Born Of The Flickering	8
Revelation 666 - The Curse Of Damnation	8
In Defiance Of Existence	8
In The Shades Of Life [Demo]	8
Slaves Of The World	8
Vermin	7

Olim

Because

7

Olympus Mons

Healer

8

Om

God Is Good	6
Advaitic Songs	6

Omega Diatribe

Metanoia

7

Omnium Gatherum

Years In Waste	7
The Redshift	7
New World Shadows	7
Beyond	7
Grey Heavens	7
The Burning Cold	7
Origin	7
Stuck Here On Snakes Way	6

On Thorns I Lay

On Thorns I Lay

7

Once Human

Evolution

6

Ondfødt

Oldfodt [EP]

7

Ondskapt

Arisen From The Ashes

6

One Man Army And The Undead Quartet

21st Century Killing Machine	8
Error In Evolution	7
Grim Tales	7
The Dark Epic...	7

Opera Diabolicus

Death On A Pale Horse

7

Opeth

Morningrise	10
My Arms, Your Hearse	10
Blackwater Park	10
Orchid	9
The Roundhouse Tapes [Live]	9
Still Life	8
Deliverance	8
Ghost Reveries	8
§1 [Single]	8
Damnation	7
Watershed	7
Sorceress	5
In Cauda Venenum	5
Heritage	4

Ophis

Withered Shades	9
Abhorrence In Opulence	8
Spew Forth Odium	8

Opprobrium

Discerning Forces

7

Oracles

Miserycorde

7

Oranssi Pazuzu

Kosmonument	4
Muuntautuja	3

Orbit Culture

Descent

7

Order Of Ennead

An Examination Of Being

9

Ordog

Remorse

8

Origin

Echoes Of Decimation	7
Unparalleled Universe	6

Orphanage

Oblivion	8
By Time Alone	7
Inside	7
Driven	7

Orphaned Land

Mabool: The Story Of The Three Sons Of Seven	9
The Never Ending Way Of ORwarriOR	8
All Is One	8
Unsung Prophets & Dead Messiahs	8
Kna'an [Collaboration]	5

Orphean Passage

Apart

6

Osiah

Chronos [EP]

6

Ossian

Árnyékból A Fénybe	7
Best Of 1998-2008 [Compilation]	6
Egyszer Az Életben	6
A Tűz Jegyében	5

Otep

Hydra	8
Generation Doom	8
The God Slayer	8
The Ascension	7

Otyg

Älvefärd	9
Sagovindars Boning	7

Oubliette

Eternity Whispers

7

Ov Hell

The Underworld Regime

6

Ov Shadows

Heresiarch

7

Overkill

Scorched	7
The Wings Of War	6

Owl

You Are The Moon, I Am The Night

6

Ozzy Osbourne

Scream	7
Ozzfest Live 2002 [VA]	7
Under The Graveyard [Single]	7
Ordinary Man [Single]	7
Ordinary Man	7
Patient Number 9	7

P.O.D.

Veritas

6

Paganizer

Beyond The Macabre	8
Compiled Ammunition [Compilation]	7
Forest Of Shub Niggurath [EP]	7
Flesh Requiem	7
Scandinavian Warmachine	6

Pain

Nothing Remains The Same	7
You Only Live Twice	6
Coming Home	6
I Am	5

Pain Of Salvation

The Perfect Element, Part I	10
"BE"	10
Ending Themes: On The Two Deaths Of Pain Of Salvation [DVD]	10