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