Full list of all 111 Clicker Heroes achievements. It takes around 200 hours to unlock all of the achievements in the base game on Windows.
The base game contains 65 achievements, and there is 1 DLC pack containing 46 achievements.
Kill 100K bosses
Ascend the world 250 times
Ascend the world 100 times
Kill 1,500K monsters
Kill 1,000K monsters
Open 10,000 treasure chests
Ascend the world 50 times
Kill 10,000 bosses
Beat Zone 3,600
Beat Zone 3,400
Beat Zone 3,200
Beat Zone 3,000
Beat Zone 2,800
Beat Zone 2,600
Beat Zone 2,400
Beat Zone 2,200
Beat Zone 2,000
Beat Zone 1,800
Beat Zone 1,600
Beat Zone 1,400
Beat Zone 1,200
Ascend the world 25 times
Defeat Lagomorph of Caerbannog
Level up heroes 50,000 times
Defeat Tako, again
Defeat Tako, Head of Octopi
Defeat the Dark Wizard
Defeat Rashon, the Duke
Defeat Doppler, the Robot
Defeat the Queen of Bloops
Ascend the world 10 times
Level up heroes 25,000 times
Kill 100K monsters
Defeat Woodchip, the Rodent
Defeat the Green One
Click 250K times
Ascend the world 5 times
Beat Zone 160
Ascend the world 3 times
Kill 1,000 bosses
Get 250 hero upgrades
Kill 10,000 monsters
Ascend the world 1 time
Beat Zone 140
Level up heroes 10,000 times
Beat Zone 120
Click 100K times
Beat Zone 100
Defeat Omeet
Get 100 hero upgrades
Kill 100 bosses
Level up heroes 2,500 times
Click 50,000 times
Beat Zone 50
Get 50 hero upgrades
Kill 1,000 monsters
Kill 10 bosses
Level up heroes 500 times
Get 25 hero upgrades
Beat Zone 25
Click 10,000 times
Level up heroes 100 times
Kill 100 monsters
Beat Zone 10
Click 1,000 times
Complete 1000 Five Minute Quests
Complete 500 Relic Quests
Beat Zone 20000 After Transcension
Complete 500 Ruby Quests
Acquire 200 Ancient Souls
Beat Zone 15000 After Transcension
Complete 500 Soul Quests
Bury 25 Mercenaries
Get a Mercenary to Level 20
Get a Mercenary to Level 15
Beat Zone 10000 After Transcension
Acquire 100 Ancient Souls
Complete 500 Gold Quests
Beat Zone 7500 After Transcension
Beat Zone 5000 After Transcension
Beat Zone 4000 After Transcension
Revive 5 Mercenaries
Get a Mercenary to Level 10
Acquire 50 Ancient Souls
Complete 250 Five Minute Quests
Complete 100 Relic Quests
Complete 100 Ruby Quests
Complete 100 Soul Quests
Complete 100 Gold Quests
Bury 5 Mercenaries
Get a Mercenary to Level 5
Complete 25 Relic Quests
Transcend 1 Time
Complete 50 Five Minute Quests
Complete 25 Soul Quests
Complete 25 Ruby Quests
Recruit an Epic Mercenary
Complete 25 Gold Quests
Complete 5 Soul Quests
Complete 5 Relic Quests
Complete 5 Ruby Quests
Complete 5 Gold Quests
Have 5 Mercenaries
Bury 100 Mercenaries
Revive 25 Mercenaries
Revive 100 Mercenaries
Bury Leeroy Jenkins
Get a Mercenary to Level 25
Beat Zone 30000 After Transcension
Acquire 500 Ancient Souls