| 1. | Portal 2 • Episode 1 - Fisted for Science | 27 | | Portal 2
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| 2. | Portal 2 Co-Op Chapter 1 | 21 | | Portal 2
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| 3. | Portal 2 • Episode 17 - I dunno a boss or something | 12 | | Portal 2
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| 4. | Portal 2 • Episode 15 - Reactor go brrrrrr | 10 | | Portal 2
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| 5. | Portal 2 Co-Op Chapter 6 [Revenge of the Cube] [Finale] | 10 | | Portal 2
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| 6. | Portal 2 • Episode 5 - Spanking the Bongos | 9 | | Portal 2
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| 7. | Portal 2 Co-Op Chapter 6 [Part 1] | 9 | | Portal 2
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| 8. | Portal 2 Co-Op Chapter 2 [Part 1] | 8 | | Portal 2
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| 9. | Portal • Episode 5 - GLaDOS, more like BaDOS [Finale] | 8 | | Portal 2
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| 10. | Portal 2 • Episode 18 - Space?! [Finale] | 8 | | Portal 2
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| 11. | Portal 2 • Episode 2 - Professional APERTURE Test Subjects | 8 | | Portal 2
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| 12. | Portal 2 Co-Op Chapter 6 [Part 2] | 7 | | Portal 2
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| 13. | Portal • Episode 3 | 7 | | Portal 2
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| 14. | Portal 2 Co-Op Chapter 6 [Part 5] | 7 | | Portal 2
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| 15. | Portal 2 Co-Op Chapter 6 [Part 4] | 7 | | Portal 2
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| 16. | Portal 2 Co-Op Chapter 5 [Part 4] | 7 | | Portal 2
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| 17. | Portal 2 • Episode 10 - Finding More Secrets | 6 | | Portal 2
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| 18. | Portal 2 Co-Op Chapter 5 [Part 1] | 6 | | Portal 2
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| 19. | Portal 2 • Episode 8 - Meeting Cave Johnson | 6 | | Portal 2
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| 20. | Portal 2 • Episode 7 - Wheatley No! | 6 | | Portal 2
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| 21. | Portal 2 • Episode 9 - Goo | 6 | | Portal 2
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| 22. | Portal 2 • Episode 3 - Gluc0se is a Cruel Soul | 5 | | Portal 2
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| 23. | Portal 2 Co-Op Chapter 2 [Part 2] | 5 | | Portal 2
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| 24. | Portal 2 • Episode 4 - The Bridge Lights the Way | 5 | | Portal 2
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| 25. | Portal 2 • Episode 13 - Bleh Bleh Bleh | 4 | | Portal 2
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| 26. | Portal 2 Co-Op Chapter 6 [Part 3] | 4 | | Portal 2
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| 27. | Portal 2 • Episode 6 - Run!! | 4 | | Portal 2
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| 28. | Portal 2 • Episode 16 - The part where he kills us | 4 | | Portal 2
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| 29. | Portal 2 Co-Op Chapter 3 [Part 1] | 3 | | Portal 2
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| 30. | Portal 2 Co-Op Chapter 3 [Part 2] | 3 | | Portal 2
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| 31. | Portal 2 Co-Op Chapter 6 [Attack of the Cube] | 3 | | Portal 2
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| 32. | Portal 2 Co-Op Chapter 6 [The Phantom Cube] | 3 | | Portal 2
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| 33. | Portal 2 Co-Op Chapter 4 [Part 2] | 3 | | Portal 2
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| 34. | Portal 2 • Episode 12 - With the Lemons! | 3 | | Portal 2
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| 35. | Portal 2 • Episode 11 - Who is Caroline?! | 3 | | Portal 2
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| 36. | Portal 2 Co-Op Chapter 5 [Part 2] | 3 | | Portal 2
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| 37. | Portal 2 • Episode 14 - The Breaking Point | 2 | | Portal 2
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| 38. | Portal 2 Co-Op Chapter 4 [Part 1] | 1 | | Portal 2
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| 39. | Portal 2 Co-Op Chapter 5 [Part 3] | 1 | | Portal 2
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