STEINS;GATE

1. 
   Skyclad ObserverSecret

   Steam withholds the description of a secret achievement.
   5.1%
2. 
   The Choice of Steins Gate

   Started Steins;Gate.
   95%
3. 
   Prologue of the Beginning and the EndSecret

   Steam withholds the description of a secret achievement.
   61%
4. 
   Time Travel ParanoiaSecret

   Steam withholds the description of a secret achievement.
   35%
5. 
   Interpreter RendezvousSecret

   Steam withholds the description of a secret achievement.
   28%
6. 
   Butterfly Effect's DivergenceSecret

   Steam withholds the description of a secret achievement.
   25%
7. 
   Chaos Theory HomeostasisSecret

   Steam withholds the description of a secret achievement.
   22%
8. 
   Dogma in Event HorizonSecret

   Steam withholds the description of a secret achievement.
   21%
9. 
   Metaphysics NecrosisSecret

   Steam withholds the description of a secret achievement.
   18%
10. 
    Made in ComplexSecret

    Steam withholds the description of a secret achievement.
    18%
11. 
    Fractal AndrogynousSecret

    Steam withholds the description of a secret achievement.
    17%
12. 
    Endless ApoptosisSecret

    Steam withholds the description of a secret achievement.
    17%
13. 
    Open The Steins Gate

    Reached Steins Gate.
    15%
14. 
    Genius Girl's MelancholySecret

    Steam withholds the description of a secret achievement.
    17%
15. 
    Paradox MeltdownSecret

    Steam withholds the description of a secret achievement.
    13%
16. 
    Stardust SkySecret

    Steam withholds the description of a secret achievement.
    15%
17. 
    Irreversible RebootSecret

    Steam withholds the description of a secret achievement.
    19%
18. 
    Link of Corruption and RebirthSecret

    Steam withholds the description of a secret achievement.
    16%
19. 
    Isolated Jamais Vu

    Reached Faris's ending.
    16%
20. 
    All Worldlines Complete

    Completed all endings.
    12%
21. 
    25% CG Achievement

    Unlocked 25% of CGs.
    23%
22. 
    50% CG Achievement

    Unlocked 50% of CGs.
    21%
23. 
    75% CG Achievement

    Unlocked 75% of CGs.
    17%
24. 
    100% CG Achievement

    Unlocked all CGs.
    7.2%
25. 
    Memories of the Self

    [Phone Trigger] Viewed email send history at least once.
    47%
26. 
    Memories of Another

    [Phone Trigger] Read an email.
    51%
27. 
    Resonant Reaction

    [Phone Trigger] Replied to an email.
    44%
28. 
    Message of Oblivion

    [Phone Trigger] Cleared someone's mail without reading it.
    19%
29. 
    Vision Projection

    [Phone Trigger] Changed phone wallpaper.
    34%
30. 
    First Sound

    [Phone Trigger] Changed ringtone.
    34%
31. 
    Identity of Complete Isolation

    [Phone Trigger] Ignored a phone call.
    24%
32. 
    Hero of RaiNet

    [Phone Trigger] Received all 13 RaiNet episode summaries.
    5.4%
33. 
    Froggy Fad Demise

    [Phone Trigger] Received all Gero Froggy wallpapers.
    6.0%
34. 
    Songs of Chaos

    [Phone Trigger] Received 4 songs from a chaotic head.
    6.1%
35. 
    RaiNet's Mascot

    [Phone Trigger] Received 2 Upa wallpapers.
    18%
36. 
    Princesses of Chaos

    [Phone Trigger] Received 3 wallpapers of characters from a chaotic head.
    6.7%
37. 
    Discontinuous Qualia

    [Phone Trigger] Asked by Kurisu to buy cup noodles twice in a row.
    8.5%
38. 
    Passions Best Forgotten

    [Phone Trigger] Learned why Mayuri started making costumes.
    13%
39. 
    Warrior Girl's Pride

    [Phone Trigger] Received an unusual proposition from Suzuha.
    14%
40. 
    Cruel Sister

    Learned about Luka's relationship to his sister.
    9.6%
41. 
    Cat's Tea Time

    [Phone Trigger] Offered tea by Faris.
    8.7%
42. 
    Homerun-level Clumsiness

    Made 10 mistakes while attempting to set the PhoneWave (name subject to change)'s timer.
    11%

Names, descriptions and icons are the game’s own, as Steam publishes them; the share is how many owners have unlocked each, from Steam's global figures for 42 of them.