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