| 1. | Portal 2 Co-Op: Hakuna Matata 3 | 822 | | Portal 2
|
| 2. | Portal 2 Co-Op: Aperture Valentine, Part 3 | 479 | | Portal 2
|
| 3. | Portal 2 Co-Op: Pyrron_Coop.029 : Barad Dur | 458 | | Portal 2
|
| 4. | Portal 2 Co-Op: Spare Map Pack - Part 2/3 | 392 | | Portal 2
|
| 5. | Portal 2 Co-Op: Duo Puzzle #3 | 300 | | Portal 2
|
| 6. | Portal 2 Co-Op: Interior Crocodile Alligator, Part 1 | 243 | | Portal 2
|
| 7. | Portal 2 Co-Op: Hakuna Matata 5 | 230 | | Portal 2
|
| 8. | Portal 2 Co-Op: Friendship is magic 43 | 193 | | Portal 2
|
| 9. | Portal 2 Co-Op: Testkammer 8 von tiwopli | 191 | | Portal 2
|
| 10. | Portal 2 Co-Op: [PeTI COOP] Sunbury Chambers 19 | 188 | | Portal 2
|
| 11. | Portal 2 Co-Op: This is Teamwork 2 | 165 | | Portal 2
|
| 12. | Portal 2 Co-Op: Aperture Valentine, Part 4 | 164 | | Portal 2
|
| 13. | Portal 2 Co-Op: Aperture Valentine, Part 5-1 | 162 | | Portal 2
|
| 14. | Portal 2 Co-Op: mdm 004 | 150 | | Portal 2
|
| 15. | Portal 2 Co-Op: Friendship is magic 47 | 121 | | Portal 2
|
| 16. | Portal 2 Co-Op: Spare Map Pack - Part 1/3 | 118 | | Portal 2
|
| 17. | Portal 2 Co-Op: Aperture Valentine, Part 1 | 115 | | Portal 2
|
| 18. | Portal 2 Co-Op: Aperture Valentine, Part 6 | 113 | | Portal 2
|
| 19. | Portal 2 Co-Op: Friendship is magic 39 | 113 | | Portal 2
|
| 20. | Portal 2 Co-op: Friendship is magic 37 | 102 | | Portal 2
|
| 21. | Portal 2 Co-Op: Aperture Valentine, Part 5-2 | 94 | | Portal 2
|
| 22. | Portal 2 Co-Op: Friendship is magic 41 | 93 | | Portal 2
|
| 23. | Portal 2 Co-Op: Companion Cube Cooperative Maze 2 | 84 | | Portal 2
|
| 24. | Portal 2 Co-Op: Companion Cube Cooperative Maze | 80 | | Portal 2
|
| 25. | Portal 2 Co-Op: mdm 002 | 69 | | Portal 2
|
| 26. | Portal 2 Co-Op: Command Central Coop (Needs testing) | 69 | | Portal 2
|
| 27. | Portal 2 Co-Op: Friends Forever 1 | 68 | | Portal 2
|
| 28. | Portal 2 Co-Op: Adventure CO-OP | 65 | | Portal 2
|
| 29. | Portal 2 Co-Op: Friendship is magic 42 | 64 | | Portal 2
|
| 30. | Portal 2 Co-Op: Friendship is magic 49 | 64 | | Portal 2
|
| 31. | Portal 2 Co-Op: Co-op Basement | 59 | | Portal 2
|
| 32. | Portal 2 Co-Op: Behind the Scenes | 58 | | Portal 2
|
| 33. | Portal 2 Co-Op: Insane coop 1 | 57 | | Portal 2
|
| 34. | Portal 2 Co-Op: [PeTI COOP] Sunbury Chambers 101 | 56 | | Portal 2
|
| 35. | Portal 2 Co-Op: Interior Crocodile Alligator, Part 2 | 55 | | Portal 2
|
| 36. | Portal 2 Co-Op: DGU-Dont Give Up - The Tower | 46 | | Portal 2
|
| 37. | Portal 2 Co-Op: Aperture Valentine, Part 2 | 40 | | Portal 2
|
| 38. | Portal 2 Co-Op: Friendship is magic 40 | 40 | | Portal 2
|
| 39. | Portal 2 Co-Op: Laser gates and light bridges, Part 1 | 37 | | Portal 2
|
| 40. | Portal 2 Co-Op: The Art of Cooperation IV | 36 | | Portal 2
|
| 41. | Portal 2 Co-Op: Propulsion, Part 1 | 35 | | Portal 2
|
| 42. | Portal 2 Co-Op: Friendship is magic 45 | 34 | | Portal 2
|
| 43. | Portal 2 Co-Op: Cooperate or fail, Part 1 | 33 | | Portal 2
|
| 44. | Portal 2 Co-Op: Laser gates and light bridges, Part 2 | 31 | | Portal 2
|
| 45. | Portal 2 Co-Op: SoulStealer's Level 6 | 30 | | Portal 2
|
| 46. | Portal 2 Co-Op: [PeTI COOP] Sunbury Chambers 26 | 30 | | Portal 2
|
| 47. | Portal 2 Co-Op: Friendship is magic 44 | 29 | | Portal 2
|
| 48. | Portal 2 Co-Op: Propulsion, Part 2 | 28 | | Portal 2
|
| 49. | Portal 2 Co-Op: Cooperate or fail, Part 2 | 28 | | Portal 2
|
| 50. | Portal 2 Co-Op: Friendship is magic 48 | 24 | | Portal 2
|
| 51. | Portal 2 Co-Op: Vertical Cooperation, Part 2 | 23 | | Portal 2
|
| 52. | Portal 2 Co-Op: MAD Labs: Let the Testing Begin | 23 | | Portal 2
|
| 53. | Portal 2 Co-Op: Hope you like water, Part 2 | 22 | | Portal 2
|
| 54. | Portal 2 Co-Op: [PeTI COOP] Sunbury Chambers 46 | 22 | | Portal 2
|
| 55. | Portal 2 Co-Op: The Art of Cooperation II | 22 | | Portal 2
|
| 56. | Portal 2 Co-Op: Vertical Cooperation, Part 1 | 21 | | Portal 2
|
| 57. | Portal 2 Co-Op: Hope you like water, Part 1 | 20 | | Portal 2
|
| 58. | Portal 2 Co-Op: Walking With Cubes | 20 | | Portal 2
|
| 59. | Portal 2 Co-Op: Gateway, Part 2 | 18 | | Portal 2
|
| 60. | Portal 2 Co-Op: Gateway, Part 1 | 16 | | Portal 2
|
| 61. | Portal 2 Co-Op: Co-op Chamber E.02 | 16 | | Portal 2
|
| 62. | Portal 2 Co-Op: Brother's Keepers Pt 1, Part 1 | 16 | | Portal 2
|
| 63. | Portal 2 Co-Op: Sewers | 15 | | Portal 2
|
| 64. | Portal 2 Co-Op: Friendship is magic 50 | 14 | | Portal 2
|
| 65. | Portal 2 Co-Op: Insane coop 3 | 14 | | Portal 2
|
| 66. | Portal 2 Co-Op: Brother's Keepers Pt 1, Part 2 | 13 | | Portal 2
|
| 67. | Portal 2 Co-Op: On Thin Glass | 13 | | Portal 2
|
| 68. | Portal 2 Co-Op: Co-Op: The Escort | 12 | | Portal 2
|
| 69. | Portal 2 Co-Op: 5 Floors | 12 | | Portal 2
|
| 70. | Portal 2 Co-Op: Friendship is magic 26 | 12 | | Portal 2
|
| 71. | Portal 2 Co-Op: Friendship is magic 38 | 12 | | Portal 2
|
| 72. | Portal 2 Co-Op: Scientific collaboration IX | 12 | | Portal 2
|
| 73. | Portal 2 Co-Op: Coop initiative. | 10 | | Portal 2
|
| 74. | Portal 2 Co-Op: Trust, Part 1 | 9 | | Portal 2
|
| 75. | Portal 2 Co-Op: Easy Part 5 | 8 | | Portal 2
|
| 76. | Portal 2 Co-Op: Trust, Part 2 | 8 | | Portal 2
|
| 77. | Portal 2 Co-Op: A small adventure, Part 2 | 8 | | Portal 2
|
| 78. | Portal 2 Co-Op: Trust, Part 3 | 7 | | Portal 2
|
| 79. | Portal 2 Co-Op: A Cooperative Test | 7 | | Portal 2
|
| 80. | Portal 2 Co-Op: Secure Adventure, Part 1 | 7 | | Portal 2
|
| 81. | Portal 2 Co-Op: Friendship is magic 52 | 6 | | Portal 2
|
| 82. | Portal 2 Co-Op: CoOp #4 | 5 | | Portal 2
|
| 83. | Portal 2 Co-Op: Secure Adventure, Part 2 | 4 | | Portal 2
|
| 84. | Portal 2 Co-Op: A small adventure, Part 1 | 4 | | Portal 2
|
| 85. | Portal 2 Co-Op: Thinking May Be Required | 3 | | Portal 2
|
