Top 100 Portal 2 Videos With The Longest Duration by Avatronis
| Video Title | Duration | Category | Game | |
|---|---|---|---|---|
| 1. | Thinking in 4 dimensions. Portal Reloaded | 3:48:22 | Portal 2 | |
| 2. | Wakey wakey. Time to do science. Portal 2 | 3:15:40 | Portal 2 | |
| 3. | SPAAAAACE! Portal 2 | 3:12:18 | Portal 2 |