Our Gray Matter Achievements guide lists every Achievement for this Xbox 360 adventure game and tells you how to get them.
XBOX 360 ACHIEVEMENTS LIST
Earn the Achievement to get the corresponding amount of GamerPoints added to your GamerScore.
1. Fast Play (50G) – Finish the game under 5 hours.
2. Chatty Chatty Mouth (50G) – Play 1000 dialogs.
3. A Small Act of Kindness (25G) – Put all wild flowers into vases.
4. He Can Be Nice Too (25G) – Speak with Mrs. Dalton about the bike.
5. Divided and Conquered (25G) – Win the “Divide and Conquer” game without losing any hand.
6. You Should Make Money Out Of It (25G) – Fully Succeed the Ball and Cup trick.
7. The Beast Within (100G) – Finish the game with all bonus points.
8. Gray Mattered (40G) – Finish the game.
9. A Plant In the House (20G) – Finished “A Plant in the House” Puzzle Set.
10. Setting A Trap (20G) – Finished “Setting a Trap” Puzzle Set.
11. There Was Something In the Water (20G) – Finished “There was Something in the Water” Puzzle Set.
12. Memory Of A Summer’s Night (20G) – Finished “Memory of a Summer’s Night” Puzzle Set.
13. A Message From Laura (20G) – Finished “A Message from Laura” Puzzle Set.
14. A Day In the Rowboat (20G) – Finished “A Day in the Rowboat” Puzzle Set.
15. What Happened the Day Before (20G) – Finished “What Happened the Day Before” Puzzle Set.
16. The Experiment (20G) – Finished “The Experiment” Puzzle Set.
17. C Railer Swoll (20G) – Finished “C Railer Swoll ” Puzzle Set.
18. Psi and the Mind (20G) – Finished “Psi and the Mind” Puzzle Set.
19. The Events at Horspath Track (20G) – Finished “The Events at Horspath Track” Puzzle Set.
20. Sam Plays Lab Assistant (20G) – Finished “Sam plays Lab Assistant” Puzzle Set.
21. Lambs For Dr. Styles (20G) – Finished “Lambs for Dr. Styles” Puzzle Set.
22. Houdini’s Habitat (20G) – Finished “Houdini’s habitat” Puzzle Set.
23. Dread Hill House (20G) – Finished “Dread Hill House” Puzzle Set.
24. A Special Presence (20G) – Finished “A Spectral Presence” Puzzle Set.
25. Psi and Psi Again (20G) – Finished “Psi and Psi again” Puzzle Set.
26. The Betrayer’s Price (20G) – Finished “The Betrayer’s Price” Puzzle Set.
27. Sam Gets Carded (20G) – Finished “Sam gets carded” Puzzle Set.
28. The Mysterious Dr. Styles (20G) – Finished “The Mysterious Dr. Styles” Puzzle Set.
29. Investigating the Lambs’ Club (20G) – Finished “Investigating the Lambs’ Club” Puzzle Set.
30. That Piece of Junk (20G) – Finished “That Piece of Junk” Puzzle Set.
31. Bittersweet Memories (20G) – Got your first memory flash.
32. Back to the Basics (20G) – Completed your very first magic trick.
33. Suspicions About Samantha (20G) – Finished “Suspicions about Samantha” Puzzle Set.
34. In the Lab (20G) – Finished “In the Lab” Puzzle Set.
35. Terror In the Dining Hall (20G) – Finished “Terror in the Dinning Hall” Puzzle Set.
36. The Ghost of Dread Hill (20G) – Finished “The Ghost of Dread Hill” Puzzle Set.
37. Altering the Plan (20G) – Finished “Altering the Plan” Puzzle Set.
38. I’m Laura Styles! (20G) – Finished “I’m Laura Styles!” Puzzle Set.
39. In the Lion’s Den (20G) – Finished “In the Lion’s Den” Puzzle Set.
40. Where Is She Now? (20G) – Finished “Where is She Now?” Puzzle Set.
41. The Game of Life (20G) – Finished “The Game of Life” Puzzle Set.
Here’s a trailer for the game.