Top 100 Portal Videos With The Longest Duration by Base
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | THE Portal Speedrun! | 1:08:01 | Portal | |
| 2. | My First Portal (3) | 24:46 | Portal | |
| 3. | My First Portal (5) | 23:55 | Portal | |
| 4. | My First Portal (6) | 23:44 | Portal | |
| 5. | My First Portal (2) | 21:37 | Portal | |
| 6. | My First Portal (1) | 19:05 | Portal | |
| 7. | My First Portal (4) | 17:24 | Portal |