Top 100 Portal Videos With The Most Comments by Lambda Core
| Video Title | Comments | Category | Game | |
|---|---|---|---|---|
| 1. | The Evolution of Portal (Testchamber Design Timelapse) | 34 | Portal | |
| 2. | The Black Box - Trailer | 13 | Preview | Portal |
| 3. | Portal Beta - Footsteps + Player Model Fix | 10 | Portal | |
| 4. | Portal 1 in Portal 2 | 10 | Portal | |
| 5. | Portal 2 Puzzlemaker - Freeware (Alpha) | 9 | Portal |