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