Top 100 Portal Videos With The Longest Duration by TheBillinator3000
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | Portal Walk-through Final | 22:32 | Portal | |
| 2. | Portal (END) | 21:11 | Portal | |
| 3. | Portal: Part 2 | 20:24 | Portal | |
| 4. | Portal: ERROR (Part 1) | 19:11 | Portal | |
| 5. | Portal (Part 1) | 18:40 | Portal | |
| 6. | Portal Walk-though 1 | 17:39 | Portal | |
| 7. | Portal Walk-through part 2 | 16:10 | Portal | |
| 8. | Portal: ERROR (Part 2 END) | 15:48 | Portal |