| 1 | 1973 | The Dark Side of the Moon | Pink Floyd | Album | 4.75 | 128 |
| 2 | 1969 | In the Court of the Crimson King | King Crimson | Album | 4.65 | 71 |
| 3 | 1981 | Moving Pictures | Rush | Album | 4.3 | 45 |
| 4 | 1975 | Wish You Were Here | Pink Floyd | Album | 4.65 | 105 |
| 5 | 1972 | Close to the Edge | Yes | Album | 4.4 | 45 |
| 6 | 1973 | Selling England by the Pound | Genesis | Album | 4.4 | 41 |
| 7 | 1972 | Thick as a Brick | Jethro Tull | Album | 4.35 | 47 |
| 8 | 1973 | Future Days | Can | Album | 4.5 | 14 |
| 9 | 1974 | The Lamb Lies Down on Broadway | Genesis | Album | 4.5 | 37 |
| 10 | 1971 | Fragile | Yes | Album | 4.5 | 53 |
| 11 | 1978 | Hemispheres | Rush | Album | 4.25 | 36 |
| 12 | 1973 | Brain Salad Surgery | Emerson, Lake & Palmer | Album | 4.1 | 33 |
| 13 | 1977 | Animals | Pink Floyd | Album | 4.5 | 84 |
| 14 | 1972 | Foxtrot | Genesis | Album | 4.6 | 36 |
| 15 | 1974 | Red | King Crimson | Album | 4.35 | 34 |
| 16 | 1972 | Octopus | Gentle Giant | Album | 5 | 32 |
| 17 | 1973 | Tubular Bells | Mike Oldfield | Album | 4.15 | 56 |
| 18 | 1975 | One Size Fits All | Frank Zappa and The Mothers of Invention | Album | 4.35 | 15 |
| 19 | 1972 | Per un amico | Premiata Forneria Marconi | Album | 3.75 | 8 |
| 20 | 1973 | Larks’ Tongues in Aspic | King Crimson | Album | 4.55 | 26 |
| 21 | 1974 | Mirage | Camel | Album | 4.6 | 17 |
| 22 | 1976 | 2112 | Rush | Album | 4.1 | 56 |
| 23 | 1974 | Phaedra | Tangerine Dream | Album | 4 | 22 |
| 24 | 1973 | Mëkanïk Dëstruktïẁ Kömmandöh | Magma | Album | 4.85 | 12 |
| 25 | 2003 | De‐Loused in the Comatorium | The Mars Volta | Album | 4.35 | 15 |
| 26 | 1971 | Pawn Hearts | Van der Graaf Generator | Album | 4.75 | 17 |
| 27 | 1974 | Crime of the Century | Supertramp | Album | 3.9 | 36 |
| 28 | 2001 | Blackwater Park | Opeth | Album | 4.55 | 22 |
| 29 | 1999 | Metropolis, Pt. 2: Scenes From a Memory | Dream Theater | Album | 4.6 | 10 |
| 30 | 1978 | U.K. | U.K. | Album | 4 | 17 |
| 31 | 1973 | Ashes Are Burning | Renaissance | Album | 3.2 | 9 |
| 32 | 1976 | Leftoverture | Kansas | Album | 3.85 | 15 |
| 33 | 2001 | Lateralus | Tool | Album | 4.65 | 12 |
| 34 | 1971 | In the Land of Grey and Pink | Caravan | Album | 4.5 | 15 |
| 35 | 1973 | Io sono nato libero | Banco del Mutuo Soccorso | Album | 3.65 | 10 |
| 36 | 1975 | Les cinq saisons | Harmonium | Album | 4.15 | 7 |
| 37 | 1987 | Clutching at Straws | Marillion | Album | 4.15 | 18 |
| 38 | 1974 | You: Radio Gnome Invisible, Part 3 | Gong | Album | 4.25 | 9 |
| 39 | 2007 | Fear of a Blank Planet | Porcupine Tree | Album | 4.2 | 21 |
| 40 | 1970 | Third | Soft Machine | Album | 3 | 11 |
| 41 | 1970 | Yeti | Amon Düül II | Album | 3.55 | 12 |
| 42 | 1995 | Destroy Erase Improve | Meshuggah | Album | | 5 |
| 43 | 1974 | Eldorado: A Symphony by the Electric Light Orchestra | Electric Light Orchestra | Album | 3.85 | 20 |
| 44 | 1974 | Hero and Heroine | Strawbs | Album | 5 | 5 |
| 45 | 1973 | Illusions on a Double Dimple | Triumvirat | Album | | 6 |
| 46 | 1973 | Fandangos in Space | Carmen | Album | | 6 |
| 47 | 1975 | Crack the Sky | Crack the Sky | Album | 4 | 2 |
| 48 | 1977 | Black Noise | FM | Album | 5 | 6 |
| 49 | 1995 | Hyderomastgroningem | Ruins | Album | | 1 |
| 50 | 1977 | Happy the Man | Happy the Man | Album | 4 | 7 |
