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Bone Idle Uses AI Put the dead to work. Dig up bones, hire skeletons and watch your horde haul them across 18 floating graveyards. Beat guardians for lasting medals, then perform the Great Ritual and grow a 31-node tree that makes every run stronger. Your workers keep digging while you're away.
Achievements
606 hidden until unlocked
Average Unlock Rate
63%of owners, per achievement
Rare (Under 5%)
12% of the list
Rarest
4%Ten Times the Same Death
Most Common
99%First Skeleton
By Rarity| Unlocked by | Achievements | Share |
|---|---|---|
| Under 1% | 0 | |
| 1–5% | 1 | |
| 5–20% | 1 | |
| 20–50% | 19 | |
| 50% and over | 39 |
All Achievements| # | Achievement | Unlocked |
|---|---|---|
| 1 |  First SkeletonRaise a first creature. | 99% |
| 2 |  First BoneDig up the very first bone. | 98% |
| 3 |  Lucky FindUnearth a first rare bone. | 97% |
| 4 |  Older than the cemeteryFinish excavating an ancient tomb and collect its reward. | 97% |
| 5 |  Crypt OpenedUnlock zone 2. | 96% |
Share of the game’s Steam owners who unlocked each achievement, checked 29 Oct 2026. Steam counts owners who never played, so rates run low. How we count
| 6 |  Back to the graveDefeat the guardian of zone 1. | 96% |
| 7 |  The first shiftHave 25 workers in a single domain. | 95% |
| 8 |  Charnel HouseBank 1 million bones. | 92% |
| 9 |  Factory floorHave 50 workers in a single domain. | 92% |
| 10 |  A lucky digCollect your first golden grave bonus. | 90% |
| 11 |  A job well doneComplete your first workshop mission. | 89% |
| 12 |  A Hundred ServantsOwn 100 creatures at once. | 89% |
| 13 |  Under the CatacombsUnlock zone 3. | 88% |
| 14 |  No rest for royaltyDefeat the guardian of zone 2. | 88% |
| 15 |  Infernal PaceReach 1 million bones per second. | 86% |
| 16 |  Full workforceHave 100 workers in a single domain. | 86% |
| 17 |  Bone MountainBank 1 billion bones. | 84% |
| 18 | Mass GraveUnlock zone 4. | 83% |
| 19 |  UnboundDefeat the guardian of zone 3. | 82% |
| 20 | Master BuilderStack 25 upgrade levels. | 82% |
| 21 |  First RitualPerform the Great Ritual once. | 80% |
| 22 |  Relentless GravediggerDig 500 times by hand. | 78% |
| 23 |  Choose your tradeSet a workshop to Extraction or Industry mode. | 77% |
| 24 | NecropolisUnlock zone 5. | 77% |
| 25 |  Lower the bannerDefeat the guardian of zone 4. | 76% |
| 26 |  The king finally restsDefeat the guardian of zone 5. | 71% |
| 27 |  Six RelicsGather the 6 legendary bones of the Titan. | 71% |
| 28 |  Gate of the TitanUnlock zone 6. | 71% |
| 29 |  Titan AwakeAssemble the 6 relics and wake the Bone Titan. | 70% |
| 30 |  First TrophyAssemble one trophy in the ossuary. | 66% |
| 31 | Sea of BonesBank 1.0Qa bones. | 65% |
| 32 |  Past the dragonDefeat the guardian of zone 6. | 65% |
| 33 |  Out of the mireDefeat the guardian of zone 7. | 63% |
| 34 |  Still Digging?Bank 1.5Qi bones after the Titan wakes. | 62% |
| 35 |  Cold shoulderDefeat the guardian of zone 8. | 60% |
| 36 |  Full CollectionUnearth all 18 rare bones at least once. | 57% |
| 37 |  Spine snappedDefeat the guardian of zone 9. | 56% |
| 38 | His tiny majestyHidden | 55% |
| 39 |  Break the silenceDefeat the guardian of zone 10. | 52% |
| 40 |  Tangled no moreDefeat the guardian of zone 11. | 48% |
| 41 |  Accomplished IdlerCollect 1 million bones while away. | 48% |
| 42 |  Mechanical HandDig 2500 times by hand. | 45% |
| 43 |  Quench the forgeDefeat the guardian of zone 12. | 44% |
| 44 |  Fortune in the dirtCollect 10 golden grave bonuses. | 44% |
| 45 |  Stocked DisplayAssemble 10 trophies. | 41% |
| 46 |  ShipbreakerDefeat the guardian of zone 13. | 40% |
| 47 |  Pruning seasonDefeat the guardian of zone 14. | 37% |
| 48 |  Nothing left unfinishedComplete 25 workshop missions. | 36% |
| 49 |  No more stitchesDefeat the guardian of zone 15. | 36% |
| 50 |  Deal's offDefeat the guardian of zone 16. | 35% |
| 51 |  Even gods fallDefeat the guardian of zone 17. | 34% |
| 52 |  A throne left emptyDefeat the guardian of zone 18. | 33% |
| 53 |  Take your seatHidden | 33% |
| 54 | The forgotten sealHidden | 32% |
| 55 | Forbidden readingHidden | 32% |
| 56 |  Death is a beginningHidden | 31% |
| 57 | Royal OssuaryAssemble all 20 trophies. | 27% |
| 58 | Fragment of the godsHidden | 20% |
| 59 |  Loop Without EndPerform 5 rituals. | 13% |
| 60 |  Ten Times the Same DeathPerform 10 rituals. | 4% |
