| 1. | Stephen & Mal: Portal 2 Co-op #1 | 61,233 | | Portal 2
|
| 2. | Stephen & Mal: Portal 2 Co-op #2 | 34,874 | | Portal 2
|
| 3. | Stephen & Mal: Portal 2 Co-op #3 | 27,799 | | Portal 2
|
| 4. | Stephen & Mal: Portal 2 Co-op #4 | 27,050 | | Portal 2
|
| 5. | Crooked Portal | 26,632 | | Portal 2
|
| 6. | Stephen & Mal: Portal 2 Co-op #5 | 23,913 | | Portal 2
|
| 7. | Stephen Plays: Portal 2 - Ep. 15 | 23,254 | Let's Play | Portal 2
|
| 8. | Stephen & Mal: Portal 2 Co-op #6 | 21,296 | | Portal 2
|
| 9. | Stephen & Mal: Portal 2 Co-op #7 | 20,212 | | Portal 2
|
| 10. | Stephen Plays: Portal 2 - Ep. 11 | 20,074 | Let's Play | Portal 2
|
| 11. | Stephen Plays: Portal 2 - Ep. 12 | 19,637 | Let's Play | Portal 2
|
| 12. | The Light Bridge | 18,943 | | Portal 2
|
| 13. | Stephen & Mal: Portal 2 Co-op #12 [PEER REVIEW] | 18,712 | Review | Portal 2
|
| 14. | Stephen Plays: Portal 2 - Ep. 14 | 18,686 | Let's Play | Portal 2
|
| 15. | Stephen & Mal: Portal 2 Co-op #16 | 18,588 | | Portal 2
|
| 16. | Stephen & Mal: Portal 2 Co-op #8 | 18,526 | | Portal 2
|
| 17. | Stephen Plays: Portal 2 - Ep. 13 | 18,509 | Let's Play | Portal 2
|
| 18. | Orange Juice Runway | 17,693 | | Portal 2
|
| 19. | Stephen & Mal: Portal 2 Co-op #11 | 17,155 | | Portal 2
|
| 20. | Bouncy Cube! | 16,732 | | Portal 2
|
| 21. | Stephen & Mal: Portal 2 Co-op #9 | 16,669 | | Portal 2
|
| 22. | Stephen & Mal: Portal 2 Co-op #10 | 16,349 | | Portal 2
|
| 23. | Stephen & Mal: Portal 2 Co-op #13 | 15,448 | | Portal 2
|
| 24. | Mashy Spike Plate | 14,840 | | Portal 2
|
| 25. | Art Suffering | 14,174 | | Portal 2
|
| 26. | Stephen & Mal: Portal 2 Co-op #14 | 13,930 | | Portal 2
|
| 27. | Stephen & Mal: Portal 2 Co-op #15 | 13,125 | | Portal 2
|
