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