| 101. | Portal 2 #4 — The Surprise | 28,409 | | Portal 2
|
| 102. | Portal 2 Tests: Above Aperture (3/3) | 28,185 | | Portal 2
|
| 103. | Portal HIGHLIGHTS | 26,538 | Let's Play | Portal 2
|
| 104. | Portal 2 Tests: Moonbase Luna-C (4/5) | 26,384 | | Portal 2
|
| 105. | Portal 2 #3 — Turret Mating Call | 26,250 | | Portal 2
|
| 106. | Portal 2 Tests: Pinball Machine INSIDE Portal 2! | 26,216 | | Portal 2
|
| 107. | Portal 2 Tests: Electrophobia (2/2) (Co-op) | 25,977 | | Portal 2
|
| 108. | Portal 2 Tests: Rube Goldberg | 25,897 | | Portal 2
|
| 109. | Portal 2 #2 — So Salty | 25,473 | | Portal 2
|
| 110. | Portal 2 Tests: Batcature Laboratories: Part 3 | 22,965 | | Portal 2
|
| 111. | Portal 2 Tests: Dilapidation: Part 0 | 22,145 | | Portal 2
|
| 112. | Portal 2 Tests: The Winter Testing Initiative (2/2) | 21,669 | | Portal 2
|
| 113. | Portal 2 Tests: UNREAL CHAMBER 01 | 19,233 | | Portal 2
|
| 114. | Portal 2 Tests: {Moment}um | 18,530 | | Portal 2
|
| 115. | Portal 2 Tests: Finite Duration — It Goes on FOREVER | 18,410 | | Portal 2
|
| 116. | Portal 2 Tests: Security Turret — Burn, Baby, Burn! Turret Inferno! | 18,404 | | Portal 2
|
| 117. | Portal 2 Tests: Dilapidation: Part 6 | 17,518 | | Portal 2
|
| 118. | Portal 2 Tests: Kilo-Infinity and BEYOND! | 15,908 | | Portal 2
|
| 119. | Portal 2 Tests: Dilapidation: Part 1 | 15,590 | | Portal 2
|
| 120. | Portal 2 Tests: Flying Around | 15,201 | | Portal 2
|
| 121. | Portal 2 Tests: No Money For Chambers 2 — The Can of HARMONY | 14,524 | | Portal 2
|
| 122. | Portal 2 Tests: Déjà vu | 13,002 | | Portal 2
|
| 123. | Portal 2 Tests: Cave Johnson's Vents & Funnels — Is it turned on?? | 12,857 | | Portal 2
|
| 124. | Portal 2 Tests: Dilapidation: Part 5 | 12,713 | | Portal 2
|
| 125. | Portal 2 Tests: Laser Logic | 12,696 | Vlog | Portal 2
|
| 126. | Portal 2 Tests: Barriers | 12,134 | | Portal 2
|
| 127. | Portal 2 Tests: Sabrina's Gym — Pokémon Gym in Portal 2?! | 11,893 | | Portal 2
|
| 128. | Portal 2 Tests: Dilapidation: Part 4 | 11,508 | | Portal 2
|
| 129. | Portal 2 Tests: Time Puzzle Concepts / Pushy Laser | 11,388 | | Portal 2
|
| 130. | Portal 2 Tests: Dilapidation: Part 2 | 11,037 | | Portal 2
|
| 131. | Portal 2 Tests: Condemned Testing: Track #303 | 10,557 | | Portal 2
|
| 132. | Portal 2 Tests: Dilapidation: Part 3 | 10,479 | | Portal 2
|
| 133. | Portal 2 Tests: Overthinker | 9,951 | | Portal 2
|
| 134. | Portal 2 Tests: Flinging with Funnels | 9,658 | | Portal 2
|
| 135. | Portal 2 Tests: Cubes and Funnels — PORTAL COMMUNITY TESTS ARE BACK, BABY! | 9,072 | | Portal 2
|
| 136. | Portal 2 Tests: Uhh — Uhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh | 8,888 | | Portal 2
|
