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Data from Steam — Steam Web API Terms of Use. Last updated .
| Achievement | How to unlock | Unlocked by | Rarity |
|---|---|---|---|
| Seeker of Chaos (ABYSS) | Clear CHAOS Mode solo on “ABYSS” difficulty | 0.1% | Ultra rare |
| Seeker of the “Abyss” | Clear Floor 24 | 0.1% | Ultra rare |
| The Alpha | Solo clear Floor 18 | 0.1% | Ultra rare |
| Legendary Investigator | Solo clear Floor 24 | 0.1% | Ultra rare |
| All Complete | Collect all achievement | 0.1% | Ultra rare |
| Clear CHAOS Mode on “ABYSS” difficulty | 0.1% | Ultra rare | |
| Clear CHAOS Mode solo on “NORMAL” difficulty or higher | 0.1% | Ultra rare | |
| Clear CHAOS Mode solo on “HARD” difficulty or higher | 0.1% | Ultra rare | |
| Clear Floor 18 | 0.2% | Ultra rare | |
| Clear CHAOS Mode on “HARD” difficulty or higher | 0.2% | Ultra rare | |
| Solo clear Floor 12 | 0.3% | Ultra rare | |
| Solo clear Floor 6 | 0.6% | Ultra rare | |
| Clear CHAOS Mode on “NORMAL” difficulty or higher | 0.9% | Ultra rare | |
| Fill 150 entries in the Subject archive | 1% | Very rare | |
| Clear Floor 12 | 1.2% | Very rare | |
| Solo clear Floor 1 | 1.8% | Very rare | |
| Reach Player Rank 100 | 2% | Very rare | |
| Reach Player Rank 90 | 2.6% | Very rare | |
| Reach Player Rank 80 | 3.3% | Very rare | |
| Reach Player Rank 70 | 4.2% | Very rare | |
| Fill 100 entries in the Subject archive | 4.4% | Very rare | |
| Reach Player Rank 60 | 5.2% | Rare | |
| Played CHAOS Mode | 5.7% | Rare | |
| Clear Floor 6 | 6.3% | Rare | |
| Reach Player Rank 50 | 6.5% | Rare | |
| Reach Player Rank 40 | 7.8% | Rare | |
| Reach Player Rank 30 | 9.5% | Rare | |
| Fill 50 entries in the Subject archive | 10.2% | Rare | |
| Reach Player Rank 20 | 12.3% | Rare | |
| Clear the tutorial level | 12.8% | Rare | |
| Reach Player Rank 15 | 13.4% | Rare | |
| Clear Floor 1 | 15.3% | Rare | |
| Reach Player Rank 10 | 15.3% | Rare | |
| Fill 20 entries in the Subject archive | 16% | Rare | |
| Play the tutorial level | 17.2% | Rare | |
| Reach Player Rank 5 | 18.8% | Rare | |
| Fill 5 entries in the Subject archive | 20.7% | Uncommon | |
| Select “Play” from the title screen | 25.6% | Uncommon |