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