Top 100 Portal Videos With The Longest Duration by BlackTearDrop YT
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | Portal | Episode 2: Just Keep testing, testing and testing! | 47:55 | Portal | |
| 2. | Portal | Episode 1: Welcome to Aperture science | 42:25 | Portal | |
| 3. | Portal | Episode 3: The battle with ??? [Finale] | 38:42 | Portal |