| Album title |
Year |
Album Type |
Owned |
| Fortress EP | 1992 | EP | No |
| Seize the Day | 1993 | Full-length | Yes (MP3) |
| Into Legend | 1996 | Full-length | Yes (MP3) |
| The Garrison C.D. | 1996 | Collaboration | No |
| Victory or Valhalla | 1998 | Compilation | No |
| The Fires of Our Rage | 1999 | Full-length | Yes (MP3) |
| The Bell Tolls | 1999 | EP | No |
| Southern Thunder | 2000 | Split | No |
| ISD Australian Memorial 2003: The Spirit Lives On | 2003 | Split | No |
| Live at Bar '33 - Helsinki, Finland | 2005 | Live Album | No |
| Live in Australia '04 ISD Memorial Gig | 2008 | Split Video | No |
| Eiserne Garde / Fortress | 2009 | Split | No |
| Here Comes The Thunder - Australian ISD Memorial 2007 | 2009 | Split Video | No |
| Our War | 2015 | Compilation | No |
| Fortress | 2016 | Boxed Set | No |
| Defenders of the Faith | 2016 | Compilation | No |
| Brothers of the Storm | 2018 | Full-length | No |
| Orion | 2021 | EP | No |