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