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