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