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