| 1. |  Aspyr | Lightmatter – Announcement Trailer | 2,313,646 | Preview |
| 2. | Aspyr | Lightmatter – Launch Trailer | 600,432 | |
| 3. |  兄者弟者 | #1【謎解き】弟者の「Lightmatter」【2BRO.】 | 509,663 | |
| 4. | Alpha Beta Gamer | Lightmatter - Shadows Kill You in this Stylish, Inventive & Darkly Humorous Sci-Fi Puzzle Adventure | 300,605 | |
| 5. | Funhaus | The Shadows Will Kill You! - Lightmatter Gameplay | 270,376 | |
| 6. | 兄者弟者 | #2【謎解き】弟者の「Lightmatter」【2BRO.】 | 260,690 | |
| 7. |  Limmy | Joke in bad taste? THIS is how to apologise | 242,910 | |
| 8. | 兄者弟者 | #3【謎解き】弟者の「Lightmatter」【2BRO.】 | 178,201 | |
| 9. | 兄者弟者 | #5【謎解き】弟者の「Lightmatter」【2BRO.】 | 167,693 | |
| 10. | 兄者弟者 | #4【謎解き】弟者の「Lightmatter」【2BRO.】 | 150,096 | |
| 11. | 兄者弟者 | #6【謎解き】弟者の「Lightmatter」【2BRO.】 | 114,494 | |
| 12. | 兄者弟者 | #7【謎解き】弟者の「Lightmatter」【2BRO.】 | 113,937 | |
| 13. | 兄者弟者 | #8【謎解き】弟者の「Lightmatter」【2BRO.】 | 109,477 | |
| 14. | 兄者弟者 | #9【謎解き】弟者の「Lightmatter」【2BRO.】 | 99,123 | |
| 15. | 兄者弟者 | #10【謎解き】弟者の「Lightmatter」【2BRO.】END | 93,189 | |
| 16. | Limmy | My brain's not slow | 88,002 | |
| 17. | IGN | Lightmatter – Official Launch Trailer (Portal-like Horror Puzzle Game) | 77,730 | Preview |
| 18. | 黛 灰 / Kai Mayuzumi【にじさんじ】 | 【Lightmatter】影に飲まれないよう脱出するパズルゲーム【黛 灰 / にじさんじ】 | 68,912 | |
| 19. |  HCL.hr | NOVA IGRA KAO PORTAL - Lightmatter | 51,657 | |
| 20. |  Rubhen925 | LIGHTMATTER Gameplay Walkthrough Part 1 - No Commentary [PC 1080p] | 28,761 | Walkthrough |
| 21. | The Escapist | Lightmatter | Review in 3 Minutes | 26,466 | Review |
| 22. |  بيستي و المنبه - Pisty's Alarm | اوعى تغرق في الضملة! 😫 | مجانية | لايت ماتر - Light Matter | 16,580 | |
| 23. |  Rocket Beans Let’s Play | Rätseln, das ist das neue Gruseln | Lightmatter mit Simon | 14,234 | Review |
| 24. |  Staszek iGRAszkowski | Lightmatter PL #1 | Portal + Talos + zabójczy cień :o | 12,585 | |
| 25. |  Carrot Helper - 100% Walkthroughs | No Commentary | Lightmatter 100% Game Walkthrough + All Achievements | 10,096 | Walkthrough |
| 26. |  Nokzen Gaming | Lightmatter - Gameplay (First-person Puzzler where shadows kill you) | 9,320 | Let's Play |
| 27. | SoloCap Games | When your game bug turns into a feature #indiegame #indiedev #rpg #platformer #fps #steam | 8,599 | |
| 28. | Keith Ballard | Let's Play Lightmatter Part 1 - A Light or Death Situation | 8,002 | Let's Play |
| 29. | John Koetsier (AI, robots, tech) | Photonic computing questions answered: Lightmatter CEO | 7,965 | |
| 30. | ScottyDGaming | Lightmatter, Part 4 / Virgil, Arthur or Ellen, Who is Good? Both Endings (Alternative Secret Ending) | 7,400 | Let's Play |
| 31. | Staszek iGRAszkowski | Lightmatter PL #2 | Świaaatłooo, nosisz je w... lampie ♪♫ | 7,258 | |
| 32. |  INDIAN - Czech TV Gaming Show | Lightmatter vzdává hold legendárnímu Portalu | 5,702 | |
| 33. | Staszek iGRAszkowski | Lightmatter PL #3 | Windy w tej placówce to jakiś żart! | 5,578 | |
| 34. | Staszek iGRAszkowski | Lightmatter PL #5 | Please, don't touch anything. Ups? | 5,201 | |
| 35. | Staszek iGRAszkowski | Lightmatter PL #6 - FINAŁ! | Virgil - bohater czy szaleniec? | 5,006 | |
| 36. | Staszek iGRAszkowski | Lightmatter PL #4 | Konektory fotonowe, czyli nowe zabawki :o | 4,807 | |
| 37. | Улей Пчелкина | Прохождение Lightmatter #01 - Головоломка со светом | 4,291 | |
| 38. | BloodThunder Playthroughs | TFW you Finally Figure out a Puzzle | 4,222 | |
| 39. |  LeStream Replay | Découverte du Portal-Like, Lightmatter / Conseils config' pour le stream | Lunch Play EX #74 | 3,844 | |
| 40. | Gamology | SHADOWS will KILL you in this game! (feat. TheRealGMat) | Lightmatter | 3,732 | |
| 41. | みどりくん | 光と影のパズル【Lightmatter】#1 | 3,713 | |
| 42. | NOFEX | САМЫЙ ЛАМПОВЫЙ СТРИМ В Lightmatter | 3,570 | |
| 43. | Keith Ballard | Let's Play Lightmatter Part 2 - The Insider | 3,541 | Let's Play |
| 44. | AsdfGaming_ | stay strong out there kings #lightmatter #puzzlegame #indiegame | 3,525 | |
| 45. | PC Games | Lightmatter, Coffee Talk & mehr | Unsere Indie-Perlen zu Jahresbeginn | 3,460 | |
| 46. | Evil Raccoon | Lightmatter - ЭТИ ТЕНИ ОПАСНЕЕ ЧЕМ КАЖУТСЯ! | ПЕРВЫЙ ВЗГЛЯД, ГЕЙМПЛЕЙ И ОБЗОР ИГРЫ | 3,212 | |
| 47. | AsdfGaming_ | cEoS wOuLd NeVeR dO sOmEtHiNg WrOnG #lightmatter #puzzlegame #indiegame | 3,172 | |
| 48. | StephenPlays | FIRST20 | Lightmatter | 3,042 | |
| 49. | Nilaus | Lightmatter Lets Play #1 THE TOURIST | 2,975 | Let's Play |
| 50. | CO-SU | Lightmatter Gameplay walkthrough [Part 1] - The shadow kills PC/PS4/XBOX ONE Lets play | 2,585 | Walkthrough |
| 51. | Fry | STAČÍ JEDEN ŠPATNÝ KROK! | Lightmatter | RECENZE (CZ/SK) | 2,530 | |
| 52. | Keith Ballard | Let's Play Lightmatter Part 3 - Round and Round | 2,508 | Let's Play |
| 53. | The Backlog | LightMatter Finale - Both Endings. The Good Ending, and the EVIL Ending! | 2,386 | Let's Play |
| 54. | Vortex | Recenze Lightmatter. Další variace Portalu přináší povedené hrátky se světlem a cynického vypravěče | 2,339 | |
| 55. | Keith Ballard | Let's Play Lightmatter Part 4 - Photon Connector | 2,181 | Let's Play |
| 56. |  TheRealGMat | If Aperture Science Was Run by a Moth | Lightmatter | 2,013 | Review |
| 57. | INDIE | Lightmatter | Смертоносные тени | 1,958 | |
| 58. | The Scarlet Seeker | Lightmatter | Review | 1,949 | Review |
| 59. | Keith Ballard | Let's Play Lightmatter Part 6 FINALE - Suddenly a Platformer | 1,878 | Let's Play |
| 60. | みどりくん | 光と影のパズル【Lightmatter】#2 | 1,827 | |
| 61. | Keith Ballard | Let's Play Lightmatter Part 5 - Insatiable Desire | 1,780 | Let's Play |
| 62. | Aspyr | Lightmatter – Announcement Trailer (Short) | 1,616 | Preview |
| 63. |  ShowGamer | Полное прохождение Lightmatter (1-20 уровни) | 1,596 | |
| 64. | Улей Пчелкина | Прохождение Lightmatter #02 - Расследование Эллен | 1,565 | |
| 65. | JINO | 【LightMatter ライトマター 実況#8】 ライトマターは世界を救えるのか？ 【日本語】 | 1,496 | |
| 66. | elevatorz | Mind the Gap. (Sci-fi Or Bust Puzzle Teaser 2) | 1,443 | |
| 67. | みどりくん | 光と影のパズル【Lightmatter】#3 | 1,439 | |
| 68. | One More Game [OMG] | [OMG] Lightmatter #1 // СВЕТЛАЯ МАТЕРИЯ // Прохождение на русском | 1,216 | |
| 69. | みどりくん | 光と影のパズル【Lightmatter】#4 | 1,192 | |
| 70. | fgw | Lightmatter - Full Game Playthrough (No Commentary) | 1,188 | Let's Play |
| 71. | みどりくん | 光と影のパズル【Lightmatter】#終 | 1,179 | |
| 72. | Aspyr | Lightmatter – Accolades Trailer | 1,166 | |
| 73. | みどりくん | 光と影のパズル【Lightmatter】#5 | 1,162 | |
| 74. | Game Guides Channel | Lightmatter All Achievements Playthrough | 1,157 | Let's Play |
| 75. | Улей Пчелкина | Прохождение Lightmatter #03 - Я - ассистент! | 1,137 | |
| 76. | FastGoerTV | БОЙСЯ ТЕМНОТЫ | Lightmatter ► ПЕРВЫЙ ВЗГЛЯД | 1,134 | |
| 77. | Улей Пчелкина | Прохождение Lightmatter #05 - Финал | 1,115 | |
| 78. | Ashker Nms | [FR] [PC] LightMatter // Découverte (j'y vais mais j'ai peur) | 1,051 | |
| 79. | JINO | 【LightMatter ライトマター 実況#1】闇に飲み込まれたら死ぬ！光と影を操って謎を解く一人称視点パズルゲーム 【日本語】 | 1,049 | |
| 80. | Gameswelt | Lightmatter: Portal mit ein bisschen Horror | Special | 1,026 | |
| 81. | ShowGamer | Полное прохождение Lightmatter (Уровни 20-38 + Финал/Концовка) | 1,010 | |
| 82. | PointGames | Lightmatter Ending | 972 | |
| 83. |  PlantPowers | Lightmatter Let's Play Gameplay Walkthrough -Part 1 - Stranded In The Mountain - [PC] ENG Commentary | 970 | Let's Play |
| 84. | worthplayingvideos | Lightmatter [PC] Release Date Trailer | 945 | |
| 85. | Улей Пчелкина | Прохождение Lightmatter #04 - Кот по имени Люкс | 927 | |
| 86. | Gajbotron | 🔴 LIGHTMATTER walkthrough (COMPLETE GAME!) /1440p | 897 | Walkthrough |
| 87. |  Stealth17 Gaming | Lightmatter - The Shadows Are Lava | 889 | |
| 88. |  Throneful | Lightmatter Gameplay (PC HD) [1080p60FPS] | 879 | |
| 89. | Tasselfoot | Lightmatter blind/casual playthrough - Part 1 (Levels 1-22) | 859 | Let's Play |
| 90. |  Colonkin Game | Lightmatter ► ПЕРВЫЙ ВЗГЛЯД. ТЕМНОТА УБИВАЕТ! | 854 | |
| 91. | IGRARIUM - Игровые обзоры | ОБЗОР игры LIGHTMATTER - крайне ИНТЕРЕСНЫЙ клон PORTAL | 776 | |
| 92. | Hantaa Archiwum | TAJNE LABORATORIUM I ZABAWY ŚWIATŁEM - NASTĘPCA PORTALA || Lightmatter [#1] | 721 | |
| 93. | Nilaus | Lightmatter Lets Play #2 THE JOURNALIST | 698 | Let's Play |
| 94. | PlantPowers | Lightmatter Let's Play Gameplay Walkthrough - Part 2 - The Investigator - [PC] ENG Commentary | 645 | Let's Play |
| 95. | Local Gaming Channel | Lightmatter - Singleplayer PC Games / Great Steam Games | 624 | |
| 96. | itsDair's Gaming Stuff | Let’s Play Lightmatter #6 - KITTY!!!😍🐱 | Lightmatter Lux | Lightmatter Plant Area | Lightmatter Game | 581 | |
| 97. | AsdfGaming_ | When your favorite NPC turns out to be the HERO #lightmatter #puzzlegame #indiegame | 572 | |
| 98. | CO-SU | Lightmatter Gameplay walkthrough [Part 2] - End of demo PC/PS4/XBOX ONE | 570 | Walkthrough |
| 99. | ShowGamer | Секретная концовка Lightmatter | 570 | |
| 100. | JINO | 【LightMatter ライトマター 実況#4】 ようやくエレベーターまで到達、これで脱出できる？ 【日本語】 | 562 | |
