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