Odd Dimension

The Blue Dawn

6

Oddland

Vermilion

7

Odious

Mirror Of Vibrations

7

Odious Mortem

Cryptic Implosion	9
Synesthesia	9

Odraza

Rzeczom

6

Of Feather And Bone

Sulfuric Disintegration

5

Of Mice & Men

Timeless [EP]	7
Earthandsky	6
Echo	6

Ofermod

Mysterium Iniquitatis	8
Ofermodian Litanies [EP]	6

Officium Triste

The Death Of Gaia	7
Hortus Venenum	7

Oghre

Gana	8
Grimt	8

OHHMS

Rot

7

Okkultist

O​.​M​.​E​.​N.

8

Okkultokrati

La Ilden Lyse

6

Okular

Regenerate

8

Olamot

Path Of Divinity

9

Old Corpse Road

On Ghastly Shores Lays The Wreckage Of Our Lore

7

Old Forest

Sutwyke	8
Mournfall	7

Old Man's Child

Slaves Of The World

8

Olde Throne

In The Land Of Ghosts

7

Olhava

Reborn	6
Sacrifice	6

Olim

Ursine	7
Because	7

Olkoth

At The Eye Of Chaos

8

Omega Diatribe

Metanoia	8
Deviant	7

Omega Infinity

The Anticurrent

5

Omicida

Defrauded Reign

7

Omination

NGR

6

Ominous Ruin

Amidst Voices That Echo In Stone

7

Ominous Scriptures

The Fall Of The Celestial Throne

6

Omission

Disciples Of Ravens Vengeance

6

Omnerod

The Amensal Rise	9
Construction [EP]	7
Panspermia [EP]	7

Omnihility

Dominion Of Misery

8

Omnium Gatherum

New World Shadows	9
The Burning Cold	9
Origin	9
The Redshift	8
Beyond	8
Grey Heavens	8
Slasher [EP]	8

Omnivortex

Circulate

9

Omophagia

646965	9
Rebirth In Black	9

On Thorns I Lay

Threnos	8
On Thorns I Lay	8
Aegean Sorrow	7

Once Human

Scar Weaver

8

Onda Makter

The Misanthropic Blasphemy

7

Ondfødt

Norden	8
Det Österbottniska M​ö​rkret	8
Oldfodt [EP]	7

Ondskapt

Grimoire Ordo Devus

7

OneGodLess

Mourner

8

Onelegman

Event Horizon

8

Oni

Loathing Light	7
The Silver Line	6

Onirophagus

Endarkenment

7

Onlap

Who Killed The Plan? [EP]	8
Afterglow [EP]	8
Never Too Late [EP]	7
Waves	6

Onslaught

Generation Antichrist

8

Ontborg

Following The Steps Of Damnation

7

Oomph!

Richter Und Henker

6

Opal Insight

Heir To Anger

7

Opera Diabolicus

1614

6

Opera IX

The Black Opera: Symphoniae Mysteriorum In Laudem Tenebrarum	10
Back To Sepulcro [Compilation]	10
Sacro Culto	9
Anphisbena	9
The Call Of The Wood	9
Maleventum	8
Strix Maledictae In Aeternum	8
The Gospel	8

Opeth

My Arms, Your Hearse	10
Blackwater Park	10
Deliverance	10
Ghost Reveries	10
Morningrise	9
Still Life	9
Damnation	9
Garden Of The Titans: Opeth Live At Red Rocks Amphitheater [Live]	9
Orchid	8
Watershed	8
In Cauda Venenum	8
Heritage	7
Pale Communion	7
Sorceress	7

Ophidian I

Desolate

9

Ophiuchi

Bifurcaria Bifurcata

6