Top 100 Portal Videos With The Longest Duration by ArthurC
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | Portal 1 part 6: GLaD that's done | 22:56 | Portal | |
| 2. | Portal 1 part 5: Half-assed commentary | 20:54 | Portal | |
| 3. | Portal 1 part 3: Slowdown attack | 20:00 | Portal | |
| 4. | Portal 1 part 2: Complex, but fun | 19:12 | Portal | |
| 5. | Portal 1 part 7: For the pros | 18:26 | Portal | |
| 6. | Portal 1 part 8: Real android hell | 16:23 | Portal | |
| 7. | Portal 1 part 4: Death guns | 16:14 | Portal | |
| 8. | Portal 1 part 10: Challenge considered | 15:59 | Portal | |
| 9. | Portal 1 part 1: Think before you jump | 15:56 | Portal | |
| 10. | Portal 1 part 9: Brain teaser | 14:22 | Portal |