These locations cannot be accessed in-game except through console commands. Many are empty, or unnamed. See also Oblivion:Interior Test Cells.
| EditorID | FormID | Name | Description |
|---|---|---|---|
| SEGatesOfMadness | 000524AB | (none) | Empty. |
| SEHighcross | 000411F2 | Dummy cell for getInCell | Empty. |
| SENS | 00096626 | (none) | Empty. |
| SENSDementiaGraveyardCrypt | 0005053F | Crypt | Resembles a chapel undercroft from Cyrodiil. |
| SENSPrison | 0004574F | Prison Test | Empty. |
| SEOrderPriestHolding | 00046ECa | (none) | Filled with copies of Priests of Order, and Jyggalag. |
| SEWaitingRoom | 000133A6 | The Waiting Room | Haskill's editor cell. Also located there is the unused NPC Juggler, as well as many Oddities and test items. |
| TestJbrowneXPGloomstone04 | 000793A6 | The Fountainhead, Nursery Of Delerium | Seems similar to the Fountainhead areas, with Priests of Order holding Shards of Order. Could be a cut area. |
| TestJoel | 0006B433 | Plane of the Unifrykke | An open area with a test Fanatic and Vitharn Soldier as well as a table with various notes from Ebrocca and other books. |
| TestMeganSE | 0004382A | SE Settlement Interiors | Just a bunch of house interiors. Has doors that lead to itself. |
| XPCylarne | 00018DB4 | Dummy Cell | Empty. |
| XPHowlingHalls04 | 00010347 | The Howling Halls | Empty. |
| XPHowlingHalls05 | 0001034B | The Howling Halls | Empty. |
| XPPinnacle | 0008EFA0 | Dummy Cell | Empty. |
| XPTestJeffB | 0004383F | Xedilian | Split into several sections. Inhabited mainly with Grummites. |
| XPTestMikeR | 00040520 | Test Cell of Endless Suffering | Ruin / Cave combination with test NPCs and traps. |
| XPVitharn | 0007EAFF | Dummy Cell | Empty. |
| XPVitharn05 | 00010338 | Dummy Cell | Empty. |
| XPXaselm05 | 00010333 | Xaselm | Empty. |
| XPXedilian03 | 0001036C | Xedilian | Empty. |
| XPXirethard04 | 00010331 | Xirethard | Empty. |
| XPXirethard05 | 0001035A | Xirethard | Empty. |