| 1. | Crowbcat | Crushed between two portals experiment | 403,372 | |
| 2. |  SMG4 | Portal M4R10 - If Mario was in...Portal | 257,505 | |
| 3. |  The Game Theorists | Game Theory: Portal's Companion Cube has a Dark Secret | 200,805 | |
| 4. | The Game Theorists | Game Theory: Can You Solve Portal's IMPOSSIBLE Puzzle? (Portal) | 194,037 | |
| 5. |  Manemag | НЕСТАНДАРТНЫЙ PORTAL | 193,503 | |
| 6. |  MiawAug | DiKurung Ama Nenek Nenek - Granny Horror Game Indonesia | 175,399 | |
| 7. | happyf333tz | He was so dumb that he actually looked smart | 171,474 | |
| 8. |  Hoolopee | Mini Portal Gun | 133,700 | |
| 9. | Nukazooka | Portal vs Half-Life | 125,490 | |
| 10. | Obit | BUKA PORTAL DAN PINDAH KE DUNIA LAIN!!! - DEEEER Simulator Indonesia | 101,793 | |
| 11. | Krinios | How I accidentally became a Portal speedrunner | 97,209 | |
| 12. | Товарищ Куяш | ВСЕ СМЕРТИ ИЗ Portal 1 и 2 ЗА 2 МИНУТЫ ( АНИМАЦИЯ Портал ) | 87,400 | |
| 13. | XDSchool | Part 4 - Team Skibidiman Attacks Cameratoilet 's Base | 86,397 | |
| 14. | Jazzghost | PORTAL EM 2022 AINDA É PERFEITO? | 82,995 | |
| 15. | CodyCantEatThis | I Made Portal 3 Because Valve Wouldn't | 79,139 | |
| 16. | Doobus Goobus | Portal, but she really is a moron. | 73,834 | |
| 17. | Naritsa | Как пройти Portal за 6 минут [Разбор спидрана] | 73,298 | |
| 18. | Saiko joga | EU ESMAGUEI ELE (algumas vezes) | 71,897 | |
| 19. | Valve | Portal is Free (Well, it was - now it's just a good deal). | 63,171 | |
| 20. | Paracosm | What makes Portal The Best Series EVER!? | 70,275 | |
| 21. | Msushi | How Speedrunners Beat Portal Without the Portal Gun | 66,119 | |
| 22. | IGN | Portal Speedrunner Explains to Valve How He Breaks Their Game | 58,880 | |
| 23. |  EstubeGaming | البوابات العجيبه | Portal !! 🌌😵 | 52,850 | |
| 24. |  Portal BRX | Transformando um Dual Core em um PC GAMER! | 52,086 | |
| 25. | NVIDIA GeForce | Portal with RTX | World Premiere | 50,832 | |
| 26. | MaxINFINITE | Ce poti face in VR cu Valve INDEX ! | 48,786 | |
| 27. | Gamehelper | Portal Teaser Trailer | 48,636 | |
| 28. | Marblr | Portal's Rarest Dialogue | Camera Shy | 49,496 | Vlog |
| 29. | Нарратор | Как я играл в Portal | 47,922 | |
| 30. | DeSinc | How to beat Portal Without Murdering the Turrets | 47,753 | |
| 31. | Game Maker's Toolkit | Valve's "Secret Weapon" | 53,254 | Show |
| 32. | SuperHorrorBro | Portal's Darkest Secrets (Creepy Portal Easter Eggs & Facts) | 46,231 | |
| 33. |  Майни | НЕСТАНДАРТНЫЙ PORTAL ► ПОРТАЛ | Реакция | 43,997 | |
| 34. | TheRudyGames | КРИВЫЕ КОСМОНАВТЫ - МОНТАЖ (РУДИ, СОСИДЖ) | 46,451 | |
| 35. |  RTGame | Portal is a Timeless Masterpiece | 41,390 | |
| 36. | EugeneSagaz | УНИТАЗ-УБИЙЦА | 41,310 | |
| 37. | WhatCulture Gaming | 10 Video Games That KNEW You'd Try To Cheat | 41,118 | |
| 38. | Msushi | The Portal Speedrun That Doesn't Use Portals | 41,450 | |
| 39. | Etra Games | I Made A Game That Teaches Non-Gamers FPS Games (Updated Video In Description) | 39,265 | Vlog |
| 40. | jacksepticeye | PORTAL IN VR | Portal Stories VR (HTC Vive Virtual Reality) | 37,406 | |
| 41. |  Liam Triforce | Portal Retrospective | 36,595 | |
| 42. | Skyrionn | Portal: A History of Aperture (Timeline and Lore) | 36,006 | |
| 43. | Summoning Salt | World Record Progression: Portal (Inbounds) | 35,366 | |
| 44. | Ghostcharm | Villainpedia: GLaDOS | 35,842 | |
| 45. |  Rin Penrose Ch. idol-EN | what | 34,011 | |
| 46. | Weegeepie | Luigi Plays: PORTALLL | 33,146 | Let's Play |
| 47. | Quantum Games | ИГРАЮ МОНСТРАМИ И ПРАНКУЮ ДРУЗЕЙ, ЧАСТЬ 3!!! (УГАР, ЭПИК) | 36,452 | |
| 48. | chistobzden | RUST - НАЛЁТ НА МОИ МВК СКАЛЫ. ХЕЙТЕР ОТВЕТИЛ ЗА СЛОВА | 32,802 | |
| 49. | Metalyst | Portal | Сюжет вкратце | 32,382 | |
| 50. | IGN | Portal Developers React to Multiple Speedruns (Valve Software) | 32,275 | |
| 51. | Call Me Kevin | This Art simulator let me create horrible masterpieces | 31,696 | |
| 52. | Bolloxed | Portal - Full Walkthrough | 30,943 | Walkthrough |
| 53. | TheBrainDit | Haydee - ОГО, ВОТ ЭТО СИСЬКИ :) | 30,495 | |
| 54. | gameranx | Portal 3: 10 Things We DON'T WANT | 29,470 | |
| 55. | Bombastic Clips | WHAT EVEN are THESE? | 29,203 | |
| 56. | LukassKane | ОТСЫЛКИ К PORTAL ИЗ РАЗНЫХ ИГР |EASTER EGGS| | 29,040 | |
| 57. | Cut The Crap | ХРОНОЛОГИЯ СЕРИИ PORTAL (λ) | ПЕРЕСКАЗ ИСТОРИИ APERTURE SCIENCE | 28,805 | |
| 58. | Shesez | Out of Bounds Secrets | Portal - Boundary Break | 28,428 | |
| 59. | IGM | САМЫЕ ИННОВАЦИОННЫЕ ИГРЫ | 28,320 | |
| 60. | MiawAug | Makin Susah - Portal - Part 2 Indonesia Gameplay | 27,650 | |
| 61. | Quantum Games | УГАР В КОСМОСЕ!!! | 27,322 | |
| 62. | Harry101UK | Portal - All Heart | 27,048 | |
| 63. |  jujalag | Portal Es Un Juego | 26,151 | |
| 64. | República Coisa de Nerd | ESTA TECNOLOGIA MUDA TUDO NOS GAMES! - Portal com RTX | 25,769 | Vlog |
| 65. | A Jolly Wangcore | Portal but ""harder"" - Portal "EpiC" Edition | 28,885 | |
| 66. | Metalyst | PORTAL | РАЗБОР ТЕОРИЙ | 25,459 | |
| 67. |  Marine Ch. 宝鐘マリン | 【Portal】謎の施設から抜け出せ！知育のマリンをなめるな【ホロライブ/宝鐘マリン】 | 24,846 | |
| 68. | SuperHorrorBro | 8 Shocking Plot Twists in Videogames You Never Saw Coming | 24,808 | |
| 69. |  GermanLetsPlay | AIMBOT in VIRTUAL REALITY! | 24,452 | |
| 70. | Davey Gunface | A fun video on Portals OSHA Violations that only destroyed 9 weeks of my life | 32,380 | |
| 71. |  GameCoach | 포탈 스토리 한눈에 보기 완전판 (Portal Story Full Movie) | 23,893 | |
| 72. | Quantum Games | 11 МИН РАДОСТИ И УДИВЛЕНИЯ В PORTAL VR!!! | 23,508 | |
| 73. | Outside Xtra | 7 Evil Minions You Found Too Adorable to Murder, Almost | 23,377 | |
| 74. | Modern Vintage Gamer | Portal on the Nintendo 64 is incredible | 26,568 | |
| 75. | Felix von der Laden | Neuer Bewohner für das UFO Aquarium (Hausmeister) | 22,954 | Vlog |
| 76. | A Jolly Wangcore | Milgram | 22,930 | |
| 77. | Msushi | These 12 Speedrun World Records were DISQUALIFIED | 22,878 | |
| 78. | pileoftutorials | Огромная пасхалка в Portal [Easter Egg] | 22,141 | |
| 79. | Tyler McVicker | The History of Portal | 21,856 | |
| 80. | SpecterChannel | КАК ПРОЙТИ PORTAL БЕЗ ПОРТАЛОВ? | 21,837 | |
| 81. | Sketch | Someone made this ROBLOX PORTAL GAME.. ITS CRAZY | 21,497 | |
| 82. | Godenot | ABRINDO UM PORTAL PARA O FUTURO - DEEEER Simulator | 21,179 | |
| 83. | STALKEROS VALVE | PORTAL - ВЫРЕЗАННЫЙ И РАННИЙ КОНТЕНТ! |#2| | 21,100 | |
| 84. | IRON HORSE CINEMA | Rick and Morty: Live Action Intro | 20,975 | |
| 85. | Steel Kids | Mystery Surprise Portal Hide & Seek! Escape the Surprise Portals! | Steel Kids | 20,758 | |
| 86. | Паша COSMOS | ВЕСЬ ПОРТАЛ ЗА 5 МИНУТ ( АНИМАЦИЯ PORTAL ) | 22,702 | |
| 87. | Harry101UK | Lego Dimensions: Portal - Wheatley Intro | 19,777 | |
| 88. | Miko Ch. さくらみこ | 【 Portal 】クリアまで！はじめてのPortal～沼のその先へ行く～【ホロライブ/さくらみこ】 | 19,260 | |
| 89. | Richter Overtime | Portal 1 Cut Content - Xen Ending / Chell in Xen | 19,220 | |
| 90. | Nintendo of America | Portal: Companion Collection - Announcement Trailer - Nintendo Switch | 19,151 | Preview |
| 91. | DomPlays | I'M NEVER RIDING IN ANOTHER ELEVATOR! | The Elevator Ritual | 19,069 | |
| 92. | Harry101UK | Portal - Christmas 2014 [unfinished] | 18,991 | |
| 93. | ViteC ► Play | КУБ - МОЙ ЛУЧШИЙ ДРУГ! ► Portal 1 |1| | 18,766 | |
| 94. | TheBrainDit | ИГРАЕМ В ПРЯТКИ НА КОСМИЧЕСКОЙ СТАНЦИИ! | 18,710 | |
| 95. |  Carrerita | este juego es una locura | 18,522 | |
| 96. | Paluten | Ich spiele zum ersten Mal PORTAL RTX | 18,161 | |
| 97. | Etra Games | I Modded Portal so Non-Gamers Can Play (Updated Video In Description) | 18,137 | Vlog |
| 98. | Macro | A PORTAL INTO MY MIND | 18,005 | |
| 99. |  98DEMAKE | If Portal was made in 1998 | 17,597 | |
| 100. |  Wedry | BLBÝ A BLBĚJŠÍ - Ep 1/1000 /w Bax | 17,354 | Let's Play |
