Short answer
SIX SECOND SHADOW has 100 published Steam achievements: one for each Campaign room from 1 to 90, plus ten achievements for challenges and progression. These include a deathless streak, a close timer finish, an Arcade score, completing ESCAPE and collecting all skins.
Names and requirements were checked on 18 September 2026 against the official Steam achievement list. Requirements below are explained in plain language. They are published conditions, not a claim that we have personally unlocked every achievement.
The ten challenge and progression achievements
Read the exact scope before choosing a goal: a single run, consecutive rooms and a complete collection are different requirements.
| Achievement | Requirement | What to watch for |
|---|---|---|
| NOWHERE LEFT TO RUN | Finish each of the ten ESCAPE maps. | The requirement covers all ten maps, not only unlocking the mode. |
| A HUNDRED SHADOWS | Accumulate 100 deaths. | The published description does not require all deaths in one room. |
| FLAWLESS | Complete ten consecutive rooms with no death between them. | Ten total clears are not the same as a ten-room streak. |
| HAIRLINE | Complete a room with less than 0.2 seconds remaining. | Exactly 0.2 seconds does not meet the wording “under 0.2”. |
| HIGH ROLLER | Reach a score of 500 during one Arcade run. | Scores from separate runs are not described as cumulative. |
| NO TIME FOR THAT | Finish a room while collecting no chips. | Steam uses the word “chip”; its relationship to coins or time crystals is not verified here. |
| STUBBORN | Fail ten times in one room. | Deaths spread across different rooms do not match the stated condition. |
| TIME LORD | Gather all time crystals. | The published text does not specify a room-by-room checklist or whether one run is required. |
| TREASURE HUNTER | Collect all coins across every room. | Coin locations and whether you can revisit rooms are not established by this description. |
| WARDROBE | Obtain every character skin. | This is the final collection requirement, not the unlock method for each skin. |
Collection terms: Steam uses three different words: time crystals for TIME LORD, coins for TREASURE HUNTER, and chips for NO TIME FOR THAT. Do not treat them as interchangeable without checking the in-game item. The published list does not provide pickup locations or per-skin unlock steps.
Campaign achievements: ROOM 1–90
Each entry requires completing its matching Campaign room. Jump to a range below. This is a completion reference, not a numbered walkthrough.
Rooms 1–10
| Achievement | Requirement |
|---|---|
| ROOM 1 | Complete campaign room 1. |
| ROOM 2 | Complete campaign room 2. |
| ROOM 3 | Complete campaign room 3. |
| ROOM 4 | Complete campaign room 4. |
| ROOM 5 | Complete campaign room 5. |
| ROOM 6 | Complete campaign room 6. |
| ROOM 7 | Complete campaign room 7. |
| ROOM 8 | Complete campaign room 8. |
| ROOM 9 | Complete campaign room 9. |
| ROOM 10 | Complete campaign room 10. |
Rooms 11–20
| Achievement | Requirement |
|---|---|
| ROOM 11 | Complete campaign room 11. |
| ROOM 12 | Complete campaign room 12. |
| ROOM 13 | Complete campaign room 13. |
| ROOM 14 | Complete campaign room 14. |
| ROOM 15 | Complete campaign room 15. |
| ROOM 16 | Complete campaign room 16. |
| ROOM 17 | Complete campaign room 17. |
| ROOM 18 | Complete campaign room 18. |
| ROOM 19 | Complete campaign room 19. |
| ROOM 20 | Complete campaign room 20. |
Rooms 21–30
| Achievement | Requirement |
|---|---|
| ROOM 21 | Complete campaign room 21. |
| ROOM 22 | Complete campaign room 22. |
| ROOM 23 | Complete campaign room 23. |
| ROOM 24 | Complete campaign room 24. |
| ROOM 25 | Complete campaign room 25. |
| ROOM 26 | Complete campaign room 26. |
| ROOM 27 | Complete campaign room 27. |
| ROOM 28 | Complete campaign room 28. |
| ROOM 29 | Complete campaign room 29. |
| ROOM 30 | Complete campaign room 30. |
Rooms 31–40
| Achievement | Requirement |
|---|---|
| ROOM 31 | Complete campaign room 31. |
| ROOM 32 | Complete campaign room 32. |
| ROOM 33 | Complete campaign room 33. |
| ROOM 34 | Complete campaign room 34. |
| ROOM 35 | Complete campaign room 35. |
| ROOM 36 | Complete campaign room 36. |
| ROOM 37 | Complete campaign room 37. |
| ROOM 38 | Complete campaign room 38. |
| ROOM 39 | Complete campaign room 39. |
| ROOM 40 | Complete campaign room 40. |
Rooms 41–50
| Achievement | Requirement |
|---|---|
| ROOM 41 | Complete campaign room 41. |
| ROOM 42 | Complete campaign room 42. |
| ROOM 43 | Complete campaign room 43. |
| ROOM 44 | Complete campaign room 44. |
| ROOM 45 | Complete campaign room 45. |
| ROOM 46 | Complete campaign room 46. |
| ROOM 47 | Complete campaign room 47. |
| ROOM 48 | Complete campaign room 48. |
| ROOM 49 | Complete campaign room 49. |
| ROOM 50 | Complete campaign room 50. |
Rooms 51–60
| Achievement | Requirement |
|---|---|
| ROOM 51 | Complete campaign room 51. |
| ROOM 52 | Complete campaign room 52. |
| ROOM 53 | Complete campaign room 53. |
| ROOM 54 | Complete campaign room 54. |
| ROOM 55 | Complete campaign room 55. |
| ROOM 56 | Complete campaign room 56. |
| ROOM 57 | Complete campaign room 57. |
| ROOM 58 | Complete campaign room 58. |
| ROOM 59 | Complete campaign room 59. |
| ROOM 60 | Complete campaign room 60. |
Rooms 61–70
| Achievement | Requirement |
|---|---|
| ROOM 61 | Complete campaign room 61. |
| ROOM 62 | Complete campaign room 62. |
| ROOM 63 | Complete campaign room 63. |
| ROOM 64 | Complete campaign room 64. |
| ROOM 65 | Complete campaign room 65. |
| ROOM 66 | Complete campaign room 66. |
| ROOM 67 | Complete campaign room 67. |
| ROOM 68 | Complete campaign room 68. |
| ROOM 69 | Complete campaign room 69. |
| ROOM 70 | Complete campaign room 70. |
Rooms 71–80
| Achievement | Requirement |
|---|---|
| ROOM 71 | Complete campaign room 71. |
| ROOM 72 | Complete campaign room 72. |
| ROOM 73 | Complete campaign room 73. |
| ROOM 74 | Complete campaign room 74. |
| ROOM 75 | Complete campaign room 75. |
| ROOM 76 | Complete campaign room 76. |
| ROOM 77 | Complete campaign room 77. |
| ROOM 78 | Complete campaign room 78. |
| ROOM 79 | Complete campaign room 79. |
| ROOM 80 | Complete campaign room 80. |
Rooms 81–90
| Achievement | Requirement |
|---|---|
| ROOM 81 | Complete campaign room 81. |
| ROOM 82 | Complete campaign room 82. |
| ROOM 83 | Complete campaign room 83. |
| ROOM 84 | Complete campaign room 84. |
| ROOM 85 | Complete campaign room 85. |
| ROOM 86 | Complete campaign room 86. |
| ROOM 87 | Complete campaign room 87. |
| ROOM 88 | Complete campaign room 88. |
| ROOM 89 | Complete campaign room 89. |
| ROOM 90 | Complete campaign room 90. |
Skins and the WARDROBE achievement
The developer's store description lists eight unlockable character skins. Steam defines WARDROBE as obtaining every skin. Neither statement identifies the individual unlock requirements, so it would be misleading to turn the ten challenge achievements into a skin-unlock table.
If the game displays a requirement for a locked skin, use that specific condition. A ROOM achievement, an Arcade score achievement and a cosmetic reward should not be assumed to unlock together.
Choose one completion goal at a time
- Match your room clear to ROOM 1–90.The number in the achievement name identifies the Campaign room you need to finish.
- Separate streak and timer attempts.FLAWLESS asks for ten consecutive clears without a death. HAIRLINE asks for a finish below 0.2 seconds remaining. They measure different outcomes; there is no need to deliberately delay every first clear.
- Use Arcade for HIGH ROLLER.The 500-point target applies to one Arcade run. It is not a Campaign completion score.
- Keep collection goals distinct.Track crystals, coins and skins under their own requirements. A complete achievement list does not establish where every pickup is located.
Evidence ledger.
Confirmed
What the sources confirm
- Steam publishes 100 achievement names and descriptions.
- 90 achievements correspond to Campaign rooms 1–90; ten cover challenges and progression.
- WARDROBE requires every skin; the store separately lists eight unlockable character skins.
Needs a live check
What is not yet verified
- Individual skin names and unlock methods.
- Collectible locations, replay behavior and tested achievement routes.
- Whether the game's chip, coin and time-crystal terms overlap.
Common mistakes
What to avoid
- Adding scores from multiple Arcade runs for HIGH ROLLER.
- Counting any ten room clears as a deathless consecutive streak.
- Treating an achievement condition as a tested room route or skin unlock method.
How many achievements does SIX SECOND SHADOW have?
The official Steam list checked on 18 September 2026 contains 100 achievements: 90 named ROOM 1 through ROOM 90, plus ten challenge and progression achievements.
How do I unlock HIGH ROLLER?
The published requirement is 500 points in one Arcade run. Scores from separate runs are not described as cumulative.
What is the difference between FLAWLESS and HAIRLINE?
FLAWLESS requires ten consecutive room clears without dying. HAIRLINE requires finishing a room with less than 0.2 seconds remaining.
Does WARDROBE tell me how to unlock each skin?
No. WARDROBE requires obtaining every skin, while the store lists eight unlockable skins. Neither source explains the individual skin requirements.
Is there an achievement for every ESCAPE map?
The public list has one achievement named NOWHERE LEFT TO RUN for completing all ten ESCAPE maps. The 90 numbered ROOM achievements are a separate group.