| 1. |  Rubhen925 | 28,761 | LIGHTMATTER Gameplay Walkthrough Part 1 - No Commentary [PC 1080p] | 1:11:17 |
| 2. | John Koetsier (AI, robots, tech) | 7,965 | Photonic computing questions answered: Lightmatter CEO | 24:28 |
| 3. | JOAG | 383 | Lightmatter - Walkthrough: Part 2 - Darkside - Ending - No commentary | 1:33:17 |
| 4. | DragoNate | 209 | Is humanity doomed or saved? Lightmatter part 6 | 33:45 |
| 5. | Zahait | 153 | Both Endings + 100% Achievements - Lightmatter - Episode 5 | 31:03 |
| 6. | Glitchboss420 | 57 | Lightmatter | GTX 750Ti 2GB + i5-3450 + 8GB RAM | 19:02 |
| 7. | James Karet | 20 | Light your way or die!!!! - Lightmatter part 1 (No Talking) | 17:59 |
| 8. | Indurok | 14 | FUN IS DECLINED BEYOND THIS POINT | Lightmatter (Free Trial) #4 [END] | 12:11 |
| 9. | EricKuma Game | 13 | Big Brain Time | LightMatter | 13:25 |
| 10. | Jon Renish | 13 | Steam Cleaning - Lightmatter | 47:46 |
| 11. | tehMorag | 10 | Lightmatter - All puzzles complete - Part 3 | 52:33 |
| 12. | SideCatalyst stream archives | 9 | [Stream VOD] Lightmatter (Part 2, Finale) | 3:14:32 |
| 13. | StephenFlagg | 9 | One-Shot - Lightmatter | 26:58 |
| 14. | Beefy Thiefy | 8 | Lightmatter - Part 02 - Rivals of Aperture | 14:09 |
| 15. | riskRED LIVE | 7 | This is a TRIPPY Puzzle Game | PRIME GAMES [July 18th, 2021] | 3:34:52 |
| 16. | Anti-HyperLinkLive | 6 | Back to Lightmatter (Full Game was on sale) | 54:22 |
| 17. | Natal Arts | 3 | Natal Plays LightMatter | 3:35:52 |
| 18. | DailyVariety | 2 | 29 Minutes of "Lightmatter" Gameplay! | 29:21 |
| 19. | MissehsJune | 2 | Lightmatter - Full Game | 2:39:51 |
| 20. | Natal Plays Games | 1 | Natal Plays LightMatter | 3:35:52 |
| 21. | JckleVODS | 1 | Puzzles but with LIGHT! | Lightmatter Part 2 *END* | 1:50:13 |
| 22. | edgeofthefreak | 0 | Lightmatter - s01e01 | 3:03:06 |
