Here is the full list of all 25 Click and Slay achievements.
Kill 1 Monster
Click Hidden Gold Chest
Kill A Boss
Collect 1 Gold
Collect 1 Mil
Create Profile
Purchase a Weapon
Sell a Weapon
Purchase a Store Upgrade
Purchase a Character Upgrade
Unlock Inside the Ship Town
Unlock Ice Biome
Unlock Steppe Town
Unlock Desert Biome
Unlock Ruined City Biome
Unlock Death Cave Biome
Buy a Sword
Kill 1,000,000 Creatures with Sword Equiped
Buy a Dagger
Kill 1,000,000 Creatures with Dagger Equiped
Buy an Axe
Kill 1,000,000 Creatures with Axe Equiped
Buy a Mace
Kill 1,000,000 Creatures with Mace Equiped
Collect 1 quintillion