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