| Album Title | Release date | us | uk | aus | bra | ger | can | ita | esp | fra |
|---|---|---|---|---|---|---|---|---|---|---|
| Dominion | 23 | |||||||||
| Eternity | 22 | |||||||||
| Ghost Opera: The Second Coming | 25 | |||||||||
| Haven | 11 | 15 | ||||||||
| I Am The Empire (Live From The 013) | 52 | |||||||||
| I Am the Empire - Live from the 013 | 62 | 6 | 45 | 76 | ||||||
| Siege Perilous | 24 | |||||||||
| Silverthorn | 19 | 53 | ||||||||
| The Awakening | 12 | 21 | 13 | 7 | 9 | 37 | 9 | 22 | ||
| The Fourth Legacy | 23 | 30 | ||||||||
| The Shadow Theory | 10 | 73 | ||||||||
| The Shadow Theory (Deluxe Bonus Version) | 33 | 74 | 50 | 36 | 22 | 71 | 43 | |||
| The Shadow Theory (Deluxe Version) | 43 |