Here is the full list of all 29 Sharded World achievements.
Kill 500,000 enemies
Kill last boss in any chapter 100 times
Collect 500 'Heal' items on any chapter
Collect 500 'dragon fire' items on any chapter
Collect 500 'freeze' items on any chapter
Collect 500 'eyes' items on any chapter
Keep 10,000 gold on your account
Obtain Tier 1 weapon
Obtain Tier 2 weapon
Obtain Tier 3 weapon
Obtain Tier 1 character
Obtain Tier 2 character
Obtain Tier 3 character
Complete 1st chapter
Complete any chapter 100 times in total
Complete all scenarios in challenges tab
Collect characters of each class
Collect every starting weapon
Collect every orb
Collect every character, starting weapon, orb
Obtain Tier 1 orb
Obtain Tier 2 orb
Obtain Tier 3 orb
Upgrade all Guild Masters to max
Revive 3 times in any chapter
Walk a distance of 200 kilometers
Spend 20 minutes in any chapter walking less than a kilometer of distance
Complete 1st chapter with a secret weapon
Complete 2nd chapter with a secret weapon