| 1. |  Rubhen925 | LIGHTMATTER Gameplay Walkthrough Part 1 - No Commentary [PC 1080p] | 28,761 | Walkthrough |
| 2. | John Koetsier (AI, robots, tech) | Photonic computing questions answered: Lightmatter CEO | 7,965 | |
| 3. | JOAG | Lightmatter - Walkthrough: Part 2 - Darkside - Ending - No commentary | 307 | Walkthrough |
| 4. | DragoNate | I found the cat in Lightmater part 4 | 78 | |
| 5. | JOAG | Lightmatter - Walkthrough: Part 1 - Welcome to Aperture Sc.. Black Mesa? Where am i? - No commentary | 76 | Walkthrough |
| 6. | Zahait | Both Endings + 100% Achievements - Lightmatter - Episode 5 | 73 | Show |
| 7. | DragoNate | Is that a Portal reference? Lightmatter part 2 | 49 | |
| 8. | DragoNate | The shadows swallow you in Lightmatter part 1 | 41 | Let's Play |
| 9. | Zahait | Lightmatter - Let's Play - Episode 1 | 39 | Let's Play |
| 10. | James Karet | Light your way or die!!!! - Lightmatter part 1 (No Talking) | 21 | |
| 11. | DragoNate | These puzzles make me HMMMM Lightmatter part 3 | 15 | Let's Play |
| 12. | Zahait | I am the Safety - Lightmatter - Episode 2 | 15 | Show |
| 13. | Glitchboss420 | Lightmatter | GTX 1050Ti 4GB + i5-2310 + 12GB RAM | 15 | |
| 14. | DragoNate | Is humanity doomed or saved? Lightmatter part 6 | 14 | |
| 15. | Zahait | I'm a Wizard - Lightmatter - Episode 3 | 13 | Show |
| 16. | Zahait | Big Red Button - Lightmatter - Episode 4 | 13 | Show |
| 17. | Jon Renish | Steam Cleaning - Lightmatter | 13 | |
| 18. | DragoNate | Try not to get angry Lightmatter part 5 | 12 | Let's Play |
| 19. | Glitchboss420 | Lightmatter | RTX 2060 6GB + i7-6700 + 16GB RAM | 10 | |
| 20. | tehMorag | Lightmatter - All puzzles complete - Part 3 | 10 | |
| 21. | Glitchboss420 | Lightmatter | GTX 770 2GB + i5-3450 + 8GB RAM | 9 | |
| 22. | StephenFlagg | One-Shot - Lightmatter | 9 | |
| 23. | Glitchboss420 | Lightmatter | GTX 750Ti 2GB + i5-3450 + 8GB RAM | 9 | |
| 24. | Glitchboss420 | Lightmatter Gameplay (PC) | 1080p60 | 8 | |
| 25. | EricKuma Game | Portal But With Light?! | LightMatter | 8 | |
| 26. | riskRED LIVE | This is a TRIPPY Puzzle Game | PRIME GAMES [July 18th, 2021] | 7 | |
| 27. | SideCatalyst stream archives | [Stream VOD] Lightmatter (Part 1) | 5 | |
| 28. | Indurok | ROTATION ILLUMINATION | Lightmatter (Free Trial) #3 | 5 | |
| 29. | EricKuma Game | Big Brain Time | LightMatter | 5 | |
| 30. | Beefy Thiefy | Lightmatter - Part 02 - Rivals of Aperture | 5 | |
| 31. | Indurok | FUN IS DECLINED BEYOND THIS POINT | Lightmatter (Free Trial) #4 [END] | 4 | |
| 32. | SideCatalyst stream archives | [Stream VOD] Lightmatter (Part 2, Finale) | 4 | |
| 33. | Glitchboss420 | Lightmatter | GTX 980 4GB + i7-6700 + 16GB RAM | 4 | |
| 34. | Beefy Thiefy | Spook-Tacular 5 - Lightmatter | 3 | |
| 35. | Indurok | LIGHT THE WAY | Lightmatter (Free Trial) #2 | 3 | |
| 36. | Anti-HyperLinkLive | Light... matters | 3 | |
| 37. | DailyVariety | 29 Minutes of "Lightmatter" Gameplay! | 2 | |
| 38. | Indurok | SHADOWS CAN KILL | Lightmatter (Free Trial) #1 | 2 | |
| 39. | Anti-HyperLinkLive | Back to Lightmatter (Full Game was on sale) | 2 | |
| 40. | MissehsJune | Lightmatter - Full Game | 2 | |
| 41. | Glitchboss420 | Lightmatter | GTX 950 2GB + i5-2310 + 12GB RAM | 2 | |
| 42. | JckleVODS | Puzzles but with LIGHT | Lightmatter | PC #1 | 1 | |
| 43. | Natal Plays Games | Natal Plays LightMatter | 1 | Let's Play |
| 44. | Anti-HyperLinkLive | Lightmatter WITH THE GAME ACTUALLY FUCKYOUTUBEING SHOWING! | 1 | |
| 45. | Anti-HyperLinkLive | Portal but with shadows that dissolve flesh and bones | 0 | |
| 46. | JckleVODS | Puzzles but with LIGHT! | Lightmatter Part 2 *END* | 0 | |
| 47. | edgeofthefreak | Lightmatter - s01e01 | 0 | |
