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Achievements
163 hidden until unlocked
Average Unlock Rate
30%of owners, per achievement
Rare (Under 5%)
00% of the list
Rarest
5%WAS THAT REALLY NECESSARY?
Most Common
65%STANDARD ISSUE
By Rarity| Unlocked by | Achievements | Share |
|---|---|---|
| Under 1% | 0 | |
| 1–5% | 0 | |
| 5–20% | 5 | |
| 20–50% | 8 | |
| 50% and over | 3 |
All Achievements| # | Achievement | Unlocked |
|---|---|---|
| 1 |  STANDARD ISSUEAcquire the Heartbeat Sensor and Flashlight. | 65% |
| 2 |  ONE STEP CLOSEREscape the Security Wing. | 50% |
| 3 |  A FEW ADJUSTMENTSUpgrade a piece of equipment. | 50% |
| 4 |  THAT'LL DO SOMETHINGUse a consumable item for the first time. | 45% |
| 5 |  OBEY THE SILENCEExperience your first death. | 45% |
Share of the game’s Steam owners who unlocked each achievement, checked 28 Oct 2026. Steam counts owners who never played, so rates run low. How we count
| 6 |  THE NIGHTMARE'S OVERComplete the game for the first time. | 30% |
| 7 |  STILL HEREHidden | 30% |
| 8 |  PERSONAL SPACEShoot and stun the Alternate for the first time. | 30% |
| 9 |  HAPPILY EVER AFTER?Hidden | 30% |
| 10 |  AGAINST THE ODDSMake it through the Containment Area alive. | 30% |
| 11 |  NO TURNING BACKHidden | 25% |
| 12 |  NO SIDE EFFECTS... YETConsume every expired medication. | 15% |
| 13 |  OVERPREPAREDFully upgrade all of your equipment. | 10% |
| 14 |  COOL AS A CUCUMBERComplete the game without ever panicking. | 10% |
| 15 |  WHO NEEDS SECOND CHANCESFinish the game without dying. | 5% |
| 16 |  WAS THAT REALLY NECESSARY?Complete NIGHTMARE MODE. | 5% |
RESIDUUM RESIDUUM is a first-person psychological horror game set in a decaying research facility. Armed with only a dwindling flashlight and a faulty heartbeat sensor, manage your power, uncover the truth, and escape what hides in the dark.
