Here is the full list of all 92 Idle Earth achievements.
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Own 5 Artifacts
Own 4 Artifacts
Actively cast 100 successful Spells while on fire
Own 3 Artifacts
Own 2 Artifacts
Own 1 Artifact
Obtain MAX COINS
CPS of over 1 Golden Glowy coin per second
Destroy ALL Rocks
Max out the Mage
Max out the Swordsman
Max out the Driller
Max out the Miner
Max out the Bomber
NEW_ACHIEVEMENT_DESC_2_17
Used 100 Chest Key
Spent 500 Gems
Destroy 16 Rocks
NEW_ACHIEVEMENT_DESC_2_16
Slice the rock 10,000 times as the swordsman
Used 50 Chest Key
Upgraded the Swordsman to Level 10
Upgraded the Mage to Level 7
CPS of over 1 Gold Cube coin per second
Obtain a Blood Red Coin
Drilled 10,000 Targets with the Driller
Drilled 5,000 Targets with the Driller
Upgraded the Bomber to Level 12
Upgraded the Driller to Level 15
NEW_ACHIEVEMENT_DESC_2_15
Spent 250 Gems
Used 25 Chest Key
Upgraded the Miner to Level 15
Upgraded the Mage to Level 5
NEW_ACHIEVEMENT_DESC_2_14
Slice the rock 5,000 times as the swordsman
Upgraded the Swordsman to Level 7
Destroy 12 Rocks
Actively Slash 1000 times while on fire
Spent 100 Gems
Upgraded the Mage to Level 3
Cause 10,000 Explosions with the Bomber
Perform a 100 combo sword slice
CPS of over 1 Pretty Pink coin per second
Upgraded the Bomber to Level 8
Obtain a Hard Green Coin
NEW_ACHIEVEMENT_DESC_2_13
10 perfect 'hard' spells in a row
Unlock the Mage
Cause 5,000 Explosions with the Bomber
Spent 50 Gems
Mined with the Miner 10,000 Times
Upgraded the Driller to Level 10
Upgraded the Swordsman to Level 4
Actively cause 1000 explosions while on fire
Slice the rock 1,000 times as the swordsman
Actively Drill 250 times while on fire
Upgraded the Miner to Level 10
Destroy 8 Rocks
Play for over an hour
Drilled 1,000 Targets with the Driller
Cause 1,000 Explosions with the Bomber
Slice the rock 500 times as the swordsman
Slice the rock 100 times as the swordsman
Unlock the Swordsman
Spent 10 Gems
Used 5 Chest Key
Cause 500 Explosions with the Bomber
Upgraded the Bomber to Level 4
Obtain Swirly Blue Coin
CPS of over 1 Aqua coin per second
Drilled 500 Targets with the Driller
Mined with the Miner 5,000 Times
Cause 100 Explosions with the Bomber
10 Explosions in a row without touching the ground
Unlock the Bomber
Actively Mine 1000 times while on fire
Upgraded the Driller to Level 5
Destroy 4 Rocks
Upgraded the Miner to Level 5
Destroy 10 Driller Targets in 1 go
Drilled 100 Targets with the Driller
Obtain a Jagged Grey Coin
CPS of over 1 Grey coin per second
Used 1 Chest Key
Unlock the Driller
Mined with the Miner 1,000 Times
Mined with the Miner 500 Times
Mine 100 times in 10 seconds
Mined with the Miner 100 Times
Unlocked the Miner