Here is the full list of all 50 One Life Clicker achievements.
Perform 100K idle damage
Perform 100K click damage
Perform 10 critical, evasion, block actions in total
Buy 1 prestige upgrade
Buy 100 base upgrades
Get 10 diamonds
Defeat 500 enemies
Get 1 diamond
Perform 100 idle damage
Buy 10 base upgrades
Collect 100 gold
Perform 100 click damage
Defeat 50 enemies
Defeat 5 enemies
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Perform 100 critical, evasion, block actions in total
Perform 1K critical, evasion, block actions in total
Perform 10K critical, evasion, block actions in total
Perform 100K critical, evasion, block actions in total
Perform 100M click damage
Perform 100B click damag
Perform 100T click damage
Get 100 diamonds
Get 1K diamonds
Get 10K diamonds
Defeat 5K enemies
Defeat 50K enemies
Collect 100K gold
Collect 100M gold
Collect 100B gold
Collect 100T gold
Perform 100M idle damage
Perform 100B idle damage
Perform 100T idle damage
Use 1 potion
Use 10 potions
Use 100 potions
Use 1K potions
Use 10K potions
Buy 10 prestige upgrades
Buy 100 prestige upgrades
Buy 1K prestige upgrades
Buy 10K prestige upgrades
Buy 1K base upgrades
Buy 10K base upgrades
Buy 100K base upgrades
Complete the game on hardcore difficulty
Complete the game on normal difficulty
Complete the game on easy difficulty
Complete the game on every difficulty