Orphaned Land

Mabool: The Story Of The Three Sons Of Seven	10
The Never Ending Way Of ORwarriOR	10
El Norra Alila	8
All Is One	8
Unsung Prophets & Dead Messiahs	8
Sahara	7
Kna'an [Collaboration]	7

Orpheus Omega

Portraits [EP]	7
Emberglow	6

Ortega

The Serpent Stirs [EP]	9
Crows [Demo]	9
Sacred States	9
1634	8
A Flame Never Rises On Its Own [EP]	8

Orthodox

Proceed

7

Oryx

Lamenting A Dead World

7

Oshiego

Jaljalut

7

OSI

Office Of Strategic Influence	8
Blood	7
Fire Make Thunder	7
Free	6

Osiah

Loss

7

Osiris

Meanders A Soul​.​.​.

7

Ossaert

Offerdier

7

Ósserp

Els Nous Cants De La Sibil·la

8

Otargos

Fleshborer Soulflayer

7

Otep

Hydra

3

Other World

Tenebrous

8

Ou

One	7
II: Frailty	7

Oubliette

Eternity Whispers

8

Ouroboros

Glorification Of A Myth	9
Emanations	8

Outergods

A Kingdom Built Upon The Wreckage Of Heaven

7

Outlaw

Reaching Beyond Assiah

7

Outre

Hollow Earth	8
Ghost Chants	7

Outworld

Outworld

6

Ov Sulfur

The Burden Ov Faith

7

Overkill

The Years Of Decay	8
Horrorscope	8
Ironbound	8
The Electric Age	8
White Devil Armory	7
Scorched	7

Overoth

Kingdom Of Shadows

6

Overtoun

This Darkness Feels Alive

6

Ovid's Withering

Scryers Of The Ibis

7

Ovtrenoir

Fields Of Fire

7

Owdwyr

Receptor

8

Owl

Nights In Distortion	8
Ghosts Of Summer [EP]	7

Oxbow

Love's Holiday

7

Oxx

The Primordial Blues

8

Öxxö Xööx

+ (The Opening Of The Hypercube)

7

Oxygen Destroyer

Guardian Of The Universe

7

Ozzy Osbourne

Blizzard Of Ozz	8
Diary Of A Madman	8
No More Tears	8
Bark At The Moon	6
Patient Number 9	6
Scream	4
Ordinary Man	4

P.H.O.B.O.S.

Phlogiston Catharsis

7

Pa Vesh En

Martyrs

8

Paara

Riitti

7

Pact

God Only Knows

7

Paenil Era

Deviere

7

Pagan Altar

Volume 1

7

Pagan's Mind

Enigmatic : Calling	9
Celestial Entrance	8
Heavenly Ecstasy	8
God's Equation	7

Paganizer

The Portal [EP]

7

Pain Of Salvation

The Perfect Element, Part I	10
Remedy Lane	9
One Hour By The Concrete Lake	8
Entropia	8
Panther	8
Scarsick	7
Road Salt Two	7
Falling Home	7
In The Passing Light Of Day	7
"BE"	6
Road Salt One	6

Painful

Nefarious Monarchy

7

Palace Of Worms

Cabal

7

Pale Divine

Consequence Of Time

7

Palefeather

Palefeather

8

Pallbearer

Foundations Of Burden	8
Heartless	8
Forgotten Days	7
Mind Burns Alive	7

Palm Reader

Sleepless

8

Palms

Palms

8

Pan-Amerikan Native Front

Little Turtle's War

7

Pan.thy.monium

Khaooohs And Kon-Fus-Ion

6

Pandrador

Ov Rituals, Ov Ancestors, Ov Destiny	7
Seiðr	7

Panegyrist

Hierurgy

8