Top 100 Portal Videos With The Longest Duration by Lambda Core
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | The Black Box - Trailer | 1:34 | Preview | Portal |
| 2. | The Evolution of Portal (Testchamber Design Timelapse) | 1:31 | Portal | |
| 3. | Portal 2 Puzzlemaker - Freeware (Alpha) | 1:28 | Portal | |
| 4. | Portal Beta - Footsteps + Player Model Fix | 0:33 | Portal | |
| 5. | Portal 1 in Portal 2 | 0:22 | Portal |