Vectorium

1. 
   Hello World!

   Play the game for the first time
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2. 
   Pentagun

   Defeat level 1
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3. 
   Bullet Bully

   Defeat level 2
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4. 
   Bulle'thulhu

   Defeat level 3
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5. 
   Super Tank

   Defeat level 4
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6. 
   Turrettula

   Defeat level 5
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7. 
   Co'r'ossatron

   Defeat level 6
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8. 
   Audio Dodger

   Defeat level 7
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9. 
   Gun Bird

   Defeat level 8
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10. 
    Scope-ion

    Defeat level 9
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11. 
    Rifflesia

    Defeat level 10
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12. 
    Hots

    Defeat level 11
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13. 
    Three Musketeers

    Defeat level 12
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14. 
    SPLIT BULLET

    Defeat level 13
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15. 
    Jellet Fish

    Defeat level 14
    —
16. 
    Devastator

    Defeat level 15
    —
17. 
    Welcome to Vectorium

    Get killed for the first time
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18. 
    Victory: Plane

    Defeat any level using 'Plane'.
    —
19. 
    Victory: Beammer

    Defeat any level using 'Beammer'.
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20. 
    Victory: Lord

    Defeat any level using 'Lord'.
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21. 
    Victory: Shocker

    Defeat any level using 'Shocker'.
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22. 
    Victory: Slayer

    Defeat any level using 'Slayer'.
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23. 
    Victory: WaverSecret

    Steam withholds the description of a secret achievement.
    —
24. 
    Victory: SlasherSecret

    Steam withholds the description of a secret achievement.
    —
25. 
    Activate: Beammer

    Unlock the 'Beammer'.
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26. 
    Activate: Lord

    Unlock the 'Lord'.
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27. 
    Activate: Shocker

    Unlock the 'Shocker'.
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28. 
    Activate: Slayer

    Unlock the 'Slayer'.
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29. 
    Operate: WaverSecret

    Steam withholds the description of a secret achievement.
    —
30. 
    Operate: SlasherSecret

    Steam withholds the description of a secret achievement.
    —
31. 
    Close enough...

    Get killed for 50 times, with the record of 90%
    —
32. 
    Keep Calm and Carry On

    Get killed for 100 times
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33. 
    5k Kills

    Score 5,000 kills in total.
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34. 
    10k Kills

    Score 10,000 kills in total.
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35. 
    Top Gun

    Score 500 kills with 'Plane'.
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36. 
    Superlaser

    Score 500 kills with 'Beammer'.
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37. 
    Overlord

    Score 500 kills with 'Lord'.
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38. 
    Shocker Breaker

    Score 500 kills with 'Shocker'.
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39. 
    Shinobi

    Score 500 kills with 'Slayer'.
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40. 
    SupersonicSecret

    Steam withholds the description of a secret achievement.
    —
41. 
    MayhemSecret

    Steam withholds the description of a secret achievement.
    —

Names, descriptions and icons are the game’s own, as Steam publishes them.