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