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Level 30: Threshold of Pain
Doom

Level 30: Threshold of Pain

Complete walkthrough for Doom's final level, Threshold of Pain. Find keys, defeat enemies, and reach the exit to beat Ultimate Doom.

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Complete walkthrough for Doom's final level, Threshold of Pain. Find keys, defeat enemies, and reach the exit to beat Ultimate Doom.

Walkthrough
  1. 1
    Start the level, collect the Armor behind you, and head down the stairs.
  2. 2
    At the bottom, kill all Imps and Shotgun Guys, then open the door.
  3. 3
    In the next room, kill the Imps and Shotgun Guys, then go through the opening.
  4. 4
    Follow the hallway to a staircase, killing enemies and avoiding openings.
  5. 5
    Head up the staircase, kill the Shotgun Guys and Imps, and grab the Berserk.
  6. 6
    Turn left, kill the Shotgun Guys on the staircase, and head up.
  7. 7
    A wall will lower revealing an opening; get to it and drop down.
  8. 8
    Kill the Imps below and head through the opening to the right.
  9. 9
    Follow the hall to a big room, killing Imps.
  10. 10
    In the big room, kill the Hell Knights, grab the Red Key, and leave.
  11. 11
    Back in the hallway, follow the left wall to a staircase and head up.
  12. 12
    At the top, drop down the gap to your left.
  13. 13
    Head up the stairs to your left.
  14. 14
    Go up the same staircase to your left. A wall will lower revealing an opening; get on one of the platforms with dead Imps instead of dropping.
  15. 15
    Cross the platforms, killing Imps until you reach one with an Invisibility Sphere.
  16. 16
    Grab the Invisibility Sphere and open the wall (door) on this platform.
  17. 17
    Open the Red Door at the other end of this room and go through it.
  18. 18
    Head up the small staircase, turn left, and follow the pathway to another staircase.
  19. 19
    Head down this staircase.
  20. 20
    Follow the left wall until you reach a switch, killing Hell Knights and Barons of Hell.
  21. 21
    Hit the switch; a wall to your left will open revealing a Soulsphere. Grab it.
  22. 22
    Drop down to the floor below.
  23. 23
    Head up the stairs to your left and collect the Boxes of Rockets at the top.
  24. 24
    Turn around and kill the large group of Hell Knights across from you.
  25. 25
    Go straight to the other side of the room and hit the switch. This opens a door near the staircase.
  26. 26
    Go back and through the new opening to get the Blue Key.
  27. 27
    Drop down to the floor to your left.
  28. 28
    Kill the Demons and Spectres in this room, then go through the opening to your left.
  29. 29
    Follow the left wall until you reach a teleporter, killing Imps.
  30. 30
    Step on the teleporter. You will arrive on a platform with a Megasphere and Hell Knights.
  31. 31
    Kill the Hell Knights, get the Megasphere, and drop down.
  32. 32
    Drop down the gap to the right.
  33. 33
    Head up the stairs to the left.
  34. 34
    Head up the stairs to the left. A wall will lower revealing an opening; go through it and land on a platform.
  35. 35
    Get on the platform where the Invisibility Sphere was.
  36. 36
    Open the door (wall) and go through it.
  37. 37
    Open the Red Door across from you and go through it.
  38. 38
    Head straight and drop down to the floor below.
  39. 39
    Open the Blue Door across from you, revealing a switch. Hit it. This lowers a pillar behind you, revealing a teleporter.
  40. 40
    Step into the teleporter.
  41. 41
    Walk forward; a wall will lower revealing Hell Knights and Pain Elementals. Dodge them and get to the exit switch.
  42. 42
    Hit the exit switch. You have beaten the Ultimate Doom levels!
Tips
  • Collect the Armor at the start.
  • Grab the Berserk for easier combat in the early sections.
  • The Invisibility Sphere can help you bypass some enemies.
  • The Soulsphere and Megasphere provide significant health boosts for tough fights.
  • Be prepared for a large number of Hell Knights and other strong demons in the later parts of the level.

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