Here is the full list of all 56 Grim Clicker achievements.
Upgrade weapon to quality 15
Open shard chest
Get 20 wisdom
Upgrade weapon to quality 10
Get 15 wisdom
Get 20 dexterity
Complete 100 quests
Get 15 dexterity
Upgrade any item
Open 30 chests
Get 20 strenght
Get 15 strenght
Remove three locks
Click 50000 times
Kill 20 bosses
Kill 500 champions
Reach Zone 50
Get 10 wisdom
Complete 50 quests
Open 20 chests
Get 10 strenght
Kill 10 bosses
Perform 50 rituals
Upgrade weapon to quality 5
Open 3 boss chests
Kill 5 bosses
Find people on the shard
Perform 20 rituals
Open 10 chests
Kill 10000 fireflies
Get 10 dixterity
Remove one lock
Get level 20
Perform 10 rituals
Kill 1000 fireflies
Collect 500 candles
Get 5 dixterity
Get 5 wisdom
Collect 250 candles
Complete 10 quests
Get level 10
Kill 25 champions
Upgrade any weapon
Get 5 strenght
Collect 100 Candles
Dissasemble any item
Reach Zone 10
Click 5000 times
Open 1 chest
Perform 1 ritual
Collect 50 Candles
Get level 5
Reach Zone 5
Kill 20 fireflies
Click 500 times
Kill 1 champion