| Release date | Label | Catalog ID | Format | Description |
|---|---|---|---|---|
| November 10th, 1986 | Metal Blade Records | CDE-73231 | CD | |
| 1986 | Enigma | ST-73231 | 12" vinyl | |
| 1986 | Metal Blade Records | 4XT-73231 | Cassette | |
| 1986 | Roadrunner Records | RR 9660 | 12" vinyl | |
| 1987 | Seoul Records | SIPR-003 | 12" vinyl | South Korea |
| 1987 | Seoul Records | SIPC-003 | Cassette | South Korea, Slipcase |
| 1994 | Metal Blade Records | 3984-14046-2 | CD | Reissue, Remastered, EU |
| 1994 | Metal Blade Records | 3984-14046-2 | CD | Reissue, Remastered, US |
| 1994 | Metal Blade Records | 3984-14046-4 | Cassette | Reissue, Remastered, US |
| January 16th, 1995 | Nippon Phonogram | PHCR-16155 | CD | Japan |
| 2005 | Fono Ltd. | FO499CD | CD | Slipcase |
| 2005 | Metal Blade Records | 3984-14533-1PD | 12" vinyl | Limited edition, Picture disc |
| June 13th, 2005 | Metal Blade Records | 3984-14533-2 | 2CD + DVD | Remastered, Slipcase |
| June 13th, 2005 | Metal Blade Records | 3984-14533-2 | 2CD + DVD | Digibook |
| August 7th, 2005 | Metal Blade Records | MBCY-1047/1048 | 2CD + DVD | Japan, Remastered, Slipcase |
| 2012 | Metal Blade Records | 3984-15132-1 | 12" vinyl | Limited edition, 4 colors, Reissue, Remastered |
| 2015 | Metal Blade Records | 3984-14046-2 | CD | Reissue, Remastered, EU |
| April 29th, 2016 | Metal Blade Records | 3984-15132-1 | 12" vinyl | Limited edition, 3 colors, Reissue, Remastered |
| December 16th, 2022 | Iron Grip Records | IGR015C1 | Cassette | 3 colors |
| Unknown | Metal Blade Records | Digital | Bandcamp | |
|
Unknown
(titled "Awaken the Guardian (Expanded Edition)") |
Metal Blade Records | Digital | Bandcamp |