Top 100 Portal Videos With The Longest Duration by Grimoire of Games
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | Portal - Part 11 - Gameplay | 16:13 | Portal | |
| 2. | Portal - Part 12 - Gameplay | 11:32 | Portal | |
| 3. | Portal - Part 14 - Gameplay | 10:54 | Portal | |
| 4. | Portal - Part 15 - Final - Gameplay | 9:58 | Portal | |
| 5. | Portal - Part 8 - Gameplay | 7:30 | Portal | |
| 6. | Portal - Part 9 - Gameplay | 5:25 | Portal | |
| 7. | Portal - Part 13 - Gameplay | 5:07 | Portal | |
| 8. | Portal - Part 7 - Gameplay | 5:03 | Portal | |
| 9. | Portal - Part 1 - Gameplay | 4:09 | Portal | |
| 10. | Portal - Part 6 - Gameplay | 4:08 | Portal | |
| 11. | Portal - Part 4 - Gameplay | 3:07 | Portal | |
| 12. | Portal - Part 5 - Gameplay | 3:04 | Portal | |
| 13. | Portal - Part 3 - Gameplay | 2:03 | Portal | |
| 14. | Portal - Part 2 - Gameplay | 1:33 | Portal |