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