| 1. |  jacksepticeye | 5,986,449 | THE CAKE IS A LIE | Portal - Part 1 | 49:54 |
| 2. | Bolloxed | 4,987,901 | Portal: CRUMBS OF TRUTH - Full Walkthrough | 32:40 |
| 3. | Call Me Kevin | 932,468 | They won't make Portal 3 but we have this instead | 13:21 |
| 4. | RTGame | 843,142 | Portal is a Timeless Masterpiece | 29:01 |
| 5. | Free Games Explorer | 79,446 | A Stroll in Space Game | 5:15 |
| 6. | Deebeegeek | 67,563 | I've NEVER Played Portal in my life until today... | 35:55 |
| 7. | Mysterious Jojo | 37,601 | Pat Throws A Tantrum | 0:52 |
| 8. | RockLeeSmile | 32,888 | Indie Impressions - Retrograde (Beta) | 28:04 |
| 9. | Rasburr | 3,529 | Portal but if somebody subscribes I start over | 0:34 |
| 10. | The Failure Gamer | 2,734 | Portal Redo - Episode 5 - Rematch (FINAL) | 16:44 |
| 11. | MobileGamesExplorer | 2,670 | Wimp Ultimate Game (Android & iOS) | 13:30 |
| 12. | Roryo | 2,431 | Why the Portal protagonist isn't male | 1:42 |
| 13. | VRified Games | 2,007 | How to play the Original PORTAL in VR | 17:33 |
| 14. | AloversGaming | 650 | WARP DEMO playthrough PS3/PC/Xbox 360 HD with Commentary | 20:58 |
| 15. | Adam McDermott | 554 | Portal Review and Legacy | 7:49 |
| 16. | Al Valentyn | 319 | Portal [#4] Where is the cake? - 2160p | 22:33 |
| 17. | ModernRetroGamer | 296 | Showdown with GLaDOS: Portal Episode 9 | 13:50 |
| 18. | Jake Sharratt Martínez | 261 | Jake Plays Haydee Demo | 18:48 |
| 19. | Amanda Harper | 239 | Portal - 7 - Life is too Short | 20:24 |
| 20. | Gameplay Only | 219 | TICK TOCK BANG BANG - Sneak Preview (no commentary) | 10:32 |
| 21. | Petrifying Pumpkins | 213 | Setting the world record in Sparc | 0:49 |
| 22. | xaern | 187 | me when im stuck in a 3x3 box for 2 minutes | 2:07 |
| 23. | GanonTEK | 172 | Portal - 8 - Accomplished | 16:30 |
| 24. | Shepples | 160 | Let's Play Portal ¦ Finale ¦ Advanced Maps 5 & 6 | 15:30 |
| 25. | Carbine Carlito | 150 | Sky Beneath -Demo PC Gameplay Gravity Altering Puzzle Platformer Games | 29:45 |
| 26. | JssyN | 141 | Portal - Full Playthrough (21:9) | 1:57:47 |
| 27. | GreedBest | 107 | ПОЛНОЕ ПРОХОЖДЕНИЕ PORTAl WITH RTX | 1:57:06 |
| 28. | Game Pace | 105 | Top 5 Best Games for Couples | 3:08 |
| 29. | Stellar Selk | 88 | Speedy thing | 0:18 |
| 30. | Governor91 | 81 | We Need To Talk About The Cake Portal Part 2 | 42:57 |
| 31. | Flancanstain | 79 | Portal 1 {Full Game} Livestream !!!! | 2:28:49 |
| 32. | Kyle B | 67 | WE GET OUR CAKE | Portal 1 - Part 3 | 41:31 |
| 33. | gonegirl000 | 52 | Banshee Plays Portal Ep 3 THE FINAL EPISODE | 26:15 |
| 34. | Sacky Livestreams | 51 | Portal Stories: Mel - Part 7 | 35:25 |
| 35. | soafen | 35 | checking out #Portal on Switch!!1 this should be funsies | 2:09:15 |
| 36. | SL Gaming | 32 | Thinking with Portals - Portal | 25:44 |
| 37. | patrlim | 22 | Lost in a field of stars. | 6:02 |
| 38. | Ireland Deity | 19 | ZIGGURAT Argo Apprentice Halls Of Despair Floor 1 Undead Scepter Portal Key Divine Gift 25.10.20 | 7:13 |
| 39. | DoodleDoo CG | 18 | Speedrunning Portal Levels | 21:31 |
| 40. | Speakrs Spooky Showcase | 18 | The Cake Is Alive | Completing Deadly Puzzles For Free Cake | Puzzle Horror Game | 22:01 |
| 41. | The Code Crown | 17 | The Companion Cube Will Never Speak | Portal: Still Alive | 38:55 |
| 42. | The GameCast Podcast | 15 | Portal ''THE CAKE IS A LIE!!'' | 24:03 |
| 43. | John Brady | 14 | STARLITE: Defender of Justice DEMO PS5 Gameplay Quick Look | 3:50 |
| 44. | immortalrich | 13 | Sculpting with Immortalrich | 13:24 |
| 45. | RyBro&Co Playcast | 13 | Paul Plays: Portal Supercut | 1:46:49 |
| 46. | Foley Plays | 13 | Foley Pokes the Steam Deck for a bit | 3:32:31 |
| 47. | The navy seal | 12 | Dreams_the back rooms | 2:46 |
| 48. | Joyousspeedster | 8 | Portal episode 1 Thinking with portals | 41:55 |
| 49. | Rickoshea | 8 | Completing Portal in one video because thats how short this game is | 1:28:12 |
| 50. | JosephniteFlyer's Archives | 8 | Portal 1 (Full Playthrough W/Ending) | 1:46:22 |
| 51. | The Foreseen Arcade | 6 | Pin Them - Steam Next Fest 2023 Demo | 28:06 |
| 52. | Snodge_ | 6 | Portal - Full 1st Playthrough | 2:37:30 |
| 53. | Palnai | 4 | Haunted PS1: Madvent Calender 2021 With Mom: Day 10 ~ JSON: VR Sandbox | 21:29 |
| 54. | Zanarkin Gaming | 2 | Still Alive in 2023? (Portal Full Playthrough January 17th 2023) | 2:33:41 |
| 55. | IamFericho Stream Archive | 1 | Portal | 4:27:05 |
| 56. | JosephniteFlyer | 1 | Portal 1 (Full Playthrough) [26/6/22] | 1:43:26 |
