Onheil

In Black Ashes

8

Onslaught

Generation Antichrist

7

Ontborg

Within The Depths Of Oblivion	8
Following The Steps Of Damnation	8

Opera IX

The Gospel

8

Opeth

Blackwater Park	10
The Last Will And Testament	9
Ghost Reveries	8
Pale Communion	7
Sorceress	7
In Cauda Venenum	6

Ophidian I

Desolate	9
Solvet Saeclum	8

Orbit Culture

Rasen	9
Nija	9
Shaman [EP]	9
Descent	9
In Medias Res	8

Orden Ogan

To The End	10
Ravenhead	10
Gunmen	10
Easton Hope	9
Final Days	9
Vale	8
The Order Of Fear	8

Order Of The Ebon Hand

VII: The Chariot

8

Origin

Omnipresent	8
Unparalleled Universe	8
Chaosmos	8

Orphalis

As The Ashes Settle

8

Orphaned Land

Unsung Prophets & Dead Messiahs

8

Orpheus Omega

Bleed The Way	9
Resillusion	9
Partum Vita Mortem	9
Wear Your Sins	8
Emberglow	8

Osiris

Meanders A Soul​.​.​.

7

Ossian

A Reményhozó	9
Csak A Jót	8

Oubliette

Eternity Whispers	8
The Passage	7

Ouroboros

Glorification Of A Myth	9
Emanations	9

Outlaw

Reaching Beyond Assiah

7

Ov Shadows

I Djävulens Avbild	8
Heresiarch	7

Ov Sulfur

The Burden Ov Faith

8

Overkill

Ironbound	9
White Devil Armory	8
The Grinding Wheel	8
The Wings Of War	8
Scorched	7

Ovid's Withering

Scryers Of The Ibis	9
Terraphage	8

Ozzy Osbourne

Scream	6
Black Rain	5
Ordinary Man	4

Pagan Forest

Bogu

7

Pagan Reign

Tverd (Ancient Fortress)	8
Ancient Warriors	8
Otbleski Slavi I Vozrozhdenie Bilog Velichiya	8
Уделы Былой Веры	8
Once Again	7
Art Of The Time	6

Paganizer

Flesh Requiem	9
Land Of Weeping Souls	8
The Tower Of The Morbid	8
Beyond The Macabre	8

Palantír

Lost Between Dimensions	8
Chasing A Dream	7

Paradise Lost

Medusa	9
Obsidian	8

Paradox

Electrify	6
Riot Squad	6
Tales Of The Weird	6
Heresy II - End Of A Legend	6

Paralydium

Worlds Beyond	9
Universe Calls	9

Paranorm

Empyrean

9

Parasite Inc.

Time Tears Down	9
Dead And Alive	9
Cyan Night Dreams	7

Path Of Destiny

Dreams In Splendid Black	9
The Seed Of All Evil	8
Rise And Fall	6

Paul Wardingham

Assimilate Regenerate	10
The Human Affliction	10
Spiritual Machines	9
Electromancer	9
Day Zero: Rise Of The Horde	9
Cybergenesis	9

Paydretz

Chroniques De L'insurrection

7

Pénitence Onirique

Nature Morte

8

Periphery

Periphery IV: Hail Stan	8
Periphery V: Djent Is Not A Genre	8

Permutation

Transience

9

Perpetual Night

Anâtman	9
Aconitum	7

Persefone

Spiritual Migration	10
Aathma	9