Numenorean

Adore

7

NunFuckRitual

In Bondage To The Serpent

8

Nyktalgia

Peisithanatos

7

Obituary

Cause Of Death	9
Slowly We Rot	8
The End Complete	8
Inked In Blood	6

Obitus

Slaves Of The Vast Machine

7

Obliteration

Perpetual Decay	8
Black Death Horizon	8
Cenotaph Obscure	7

Obliveon

From This Day Forward

8

Obscenity

Perversion Mankind

7

Obscura

Retribution	7
Cosmogenesis	7
Omnivium	7
Diluvium	7

Obscure Sphinx

Void Mother	8
Epitaphs	8

Obsequiae

Aria Of Vernal Tombs

7

Obsidian Sea

Strangers

6

Obtained Enslavement

Soulblight

7

Oceans Of Slumber

Aetherial	7
Winter	7
The Banished Heart	7

October Falls

A Collapse Of Faith	8
The Plague Of A Coming Age	7

October Tide

Rain Without End	8
Tunnel Of No Light	6

Odious Mortem

Cryptic Implosion

7

Ofdrykkja

Irrfärd

6

Ofermod

Thaumiel

7

Old Man's Child

Born Of The Flickering	8
The Pagan Prosperity	8
Ill-Natured Spiritual Invasion	8
Revelation 666 - The Curse Of Damnation	8
In Defiance Of Existence	8
Vermin	8
Slaves Of The World	8

Om

Conference Of The Birds	8
Pilgrimage	8
Live At Jerusalem [Live]	8
God Is Good	8
Advaitic Songs	8
Variations On A Theme	7

Omb

SwineSong

7

Omnium Gatherum

New World Shadows	7
Beyond	7
The Burning Cold	6

On Thorns I Lay

Orama	8
Aegean Sorrow	8

Ondskapt

Dödens Evangelium	8
Draco Sit Mihi Dux	7
Arisen From The Ashes	7

Opeth

Still Life	9
Deliverance	9
The Roundhouse Tapes [Live]	9
Watershed	9
Orchid	8
Morningrise	8
My Arms, Your Hearse	8
Blackwater Park	8
Damnation	8
Ghost Reveries	8
Heritage	7

Oranssi Pazuzu

Valonielu

9

Orchid

The Mouths Of Madness	8
Capricorn	7

Order From Chaos

Stillbirth Machine

7

Order Of The Ebon Hand

The Mystic Path To The Netherworld	7
VII: The Chariot	7

Organectomy

Existential Disconnect

8

Origin

Antithesis	9
Entity	8
Echoes Of Decimation	7
Omnipresent	7
Abiogenesis - A Coming Into Existence [Compilation]	5

Orphaned Land

Mabool: The Story Of The Three Sons Of Seven	8
The Never Ending Way Of ORwarriOR	8

OSI

Office Of Strategic Influence	9
Free	7
Fire Make Thunder	7
Blood	6

Ossuarium

Living Tomb

6

Outer Heaven

Realms Of Eternal Decay

7

Outre

Ghost Chants	7
Hollow Earth	6

Overkill

Taking Over	9
The Years Of Decay	8
Horrorscope	8
Ironbound	8
The Electric Age	7

Ovid's Withering

Scryers Of The Ibis	7
Scryers Of The Ibits	7

Ozzy Osbourne

Blizzard Of Ozz	8
Diary Of A Madman	8
No More Tears	8

Paara

Riitti

8

Pain

Rebirth	8
Nothing Remains The Same	8