Top 100 Portal Videos With The Longest Duration by CharlesPlays
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | Portal walkthrough part 9 [final] | 16:07 | Walkthrough | Portal |
| 2. | Cryostasis part 10 | 15:05 | Portal | |
| 3. | Portal walkthrough part 3 | 15:00 | Walkthrough | Portal |
| 4. | Portal walkthrough part 7 | 14:56 | Walkthrough | Portal |
| 5. | Portal walkthrough part 5 | 14:56 | Walkthrough | Portal |
| 6. | Portal walkthrough part 1 | 14:54 | Walkthrough | Portal |
| 7. | Portal walkthrough part 6 | 14:32 | Walkthrough | Portal |
| 8. | Portal walkthrough part 8 | 14:06 | Walkthrough | Portal |
| 9. | Portal walkthrough part 4 | 13:17 | Walkthrough | Portal |