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UnderMine 2 Early Access Delve into the dangerous, ever-shifting labyrinth that is the Undermine. Discover, craft, and combine hundreds of unique items. Pair them with an ever-expanding roster of distinct playable characters for a new run every time! Grab a partner and uncover UnderMine 2's secrets together in local co-op.
Achievements
562 hidden until unlocked
Average Unlock Rate
29%of owners, per achievement
Rare (Under 5%)
713% of the list
Rarest
0.1%Master Zoologist
Most Common
82%Hazardous Materials
By Rarity| Unlocked by | Achievements | Share |
|---|---|---|
| Under 1% | 2 | |
| 1–5% | 5 | |
| 5–20% | 17 | |
| 20–50% | 21 | |
| 50% and over | 11 |
All Achievements| # | Achievement | Unlocked |
|---|---|---|
| 1 |  Hazardous MaterialsEntered the Royal Laboratories | 82% |
| 2 |  ExterminatedDefeated Selt, Sand Hollow Monarch | 79% |
| 3 |  The Hard WayEntered the Delvemore Dungeon | 64% |
| 4 |  A Dusty PlaceEntered the King's Archives | 63% |
| 5 |  Just DessertsDefeated Trifle | 62% |
Share of the game’s Steam owners who unlocked each achievement, checked 30 Oct 2026. Steam counts owners who never played, so rates run low. How we count
| 6 |  Loyal To The EndCompleted the Preferred Patronage Participation Program | 58% |
| 7 |  Alchemical AssistanceAssisted Beltrame in the Royal Laboratories | 57% |
| 8 |  No Bun Left BehindFreed Black Rabbit from the Delvemore Dungeon | 55% |
| 9 |  Bagged and TaggedDefeated Baggledag's Triad | 54% |
| 10 |  Hallowed Be Thy NameEntered the Halls of Din | 54% |
| 11 |  Ground DownDefeated Mortar, Stormspire Monolith | 50% |
| 12 |  Smelt You LaterForged a Relic or Arcana at the Abandoned Foundry | 49% |
| 13 |  Lit UpDefeated Noori, Umbral Lord | 48% |
| 14 |  House of OrderEntered the Arcane Sanctum | 48% |
| 15 |  UprootedDefeated Cruciferous, Aetherthief Zealot | 43% |
| 16 |  Bombs, Brains, and BoysCompleted Rook and Bishop's Assignment in the King's Archives | 42% |
| 17 |  AstronomerDiscovered the Book of Moon Phases | 42% |
| 18 |  Scene of the CrimeDiscovered the Philosopher's Stone | 41% |
| 19 |  Frog StompedDefeated Bul & Gogi | 37% |
| 20 |  ShatteredDiscovered the Frost Whirl | 35% |
| 21 |  SynthesisDiscovered a Combo Item | 34% |
| 22 |  LexiconnoisseurExchanged a Book at the Tomevault | 33% |
| 23 |  A New Safety RecordAccomplished 3 Days without Incident | 31% |
| 24 |  Yearn for the Mine!Entered the Goldmine | 30% |
| 25 |  Chest PainSurvived Portimer's Planar Chest and Defeated the Mother of Mimics | 27% |
| 26 |  Throne WarmerBrought the Thalassa Oriv to the Emissary in the Arcane Sanctum | 26% |
| 27 |  Three Minutes to MidnightDiscovered the Penumbra layer of The Well | 26% |
| 28 |  Mondo, dude!Selected your starter Mondo | 24% |
| 29 |  Formula for DisasterBrewed a Potion at the Royal Testing Apparatus | 24% |
| 30 |  The Book of the DeadDiscovered the Necronomicon | 22% |
| 31 |  The Universal LanguageDiscovered the Wanderer's Tuning Fork | 22% |
| 32 |  BootstrappedCompleted a run with the Peasant | 22% |
| 33 |  UnshackledCompleted a run with Black Rabbit | 19% |
| 34 |  Graduation DayHidden | 17% |
| 35 |  Brave the LightDiscovered Regin's egg | 16% |
| 36 |  Maximum PowerUnlocked all of a familiar's abilities | 16% |
| 37 |  Brave the StormDiscovered Crackle's egg | 16% |
| 38 |  EnlightenedDiscovered Order, Primordial Impetus | 15% |
| 39 |  Brave the HeatDiscovered Clockwork's egg | 15% |
| 40 |  Through Fire and FlamesCompleted a run with Inquisitor Danté | 15% |
| 41 |  DoomsdayDiscovered the Umbra layer of The Well | 14% |
| 42 |  Brave the DarknessDiscovered Thresh's egg | 13% |
| 43 |  Written in GoldDiscovered the Pilfer Credit Ledger | 12% |
| 44 |  A Place to Kick BackHidden | 11% |
| 45 |  CursedDiscovered Sho'guul, Opulent Demon | 10% |
| 46 |  DecrystallizedReversed Cruciferous' curse and rescued Minerva | 10% |
| 47 |  Collapse of RealityDiscovered the Eclipse layer of The Well | 10% |
| 48 |  Planes WalkerDiscovered Sho'guul and Order in a single run | 6% |
| 49 |  Almost a MillionaireHeld 999,999 gold at one time | 5% |
| 50 |  EclipsedCompleted a run with Minerva | 5% |
| 51 |  SharpshooterScored 30 points or more in Black Rabbit's Slingshot Gallery | 2% |
| 52 |  Grim and Bear ItCompleted a run with a Grim level of 30 or more | 1% |
| 53 |  Treasure on DemandCaptured a Mimic of any type with the Master Mondo | 1% |
| 54 |  Toss a CoinDefeated a boss with the shockwave of a Swindler's Coin | 1% |
| 55 |  Royal ArchivistGild every Relic and Arcana in the Journal | 0.1% |
| 56 |  Master ZoologistSee every enemy in the Bestiary | 0.1% |
