Here is the full list of all 114 Heroes of Hammerwatch achievements.
Kill 75,000 Aberrations.
Obtain 10 Blood Rites at the same time.
Kill 10,000 Constructs.
Construct the statue of Cedric.
Block ten damage instances with your Lunar Shield.
Purchase something at the Legacy Shop.
Reach General rank with a mercenary.
Reach Colonel rank with a mercenary.
Reach Major rank with a mercenary.
Reach Captain rank with a mercenary.
Beat the Pyramid of Prophecy with a mercenary.
Beat the Forsaken Tower with a mercenary.
Reach level 60 with a Witch Hunter.
Reach level 40 with a Wizard.
Reach level 40 with a Thief.
Win a legendary item by gambling.
Reach level 40 with a Sorcerer.
Reach level 40 with a Ranger.
Reach level 40 with a Warlock.
Reach level 40 with a Priest.
Reach level 40 with a Paladin.
Reach Lieutenant rank with a mercenary.
Reach Corporal rank with a mercenary.
Reach Sergeant rank with a mercenary.
Beat the Moon Temple with a mercenary.
Recruit a mercenary private.
Beat the Moon Temple.
Beat the Moon Temple in NG+.
Beat the Moon Temple in NG++.
Beat the Moon Temple in NG+++.
Beat the Moon Temple in NG++++.
Beat the Moon Temple in NG+++++.
Defeat the Agents.
Defeat Krilith's Wolf
Reach level 40 with a Witch Hunter.
Defeat the Elder Wisp.
Attune 10 items at the Magic Anvil.
Reach level 20 with a Witch Hunter.
Reach level 20 with a Thief.
Reach level 20 with a Ranger.
Reach level 20 with a Warlock.
Beat the Forsaken Tower in NG+++++.
Have your companion collect 1,000,000 gold.
Reach level 20 with a Sorcerer.
Beat the Forsaken Tower in NG++++.
Reach level 20 with a Wizard.
Beat the Forsaken Tower in NG+++.
Kill 100,000 Undead.
Reach level 20 with a Priest.
Craft an item using the Magic Furnace.
Acquire a companion.
Try your luck at item gambling.
Use a Blood Altar.
Beat the Forsaken Tower in NG++.
Craft 10 items at the Magic Anvil.
Beat the Forsaken Tower in NG+.
Chain a combo of 500 kills.
Kill 50,000 Beasts.
Fully upgrade the Town.
Consume 10 drinks at the Tavern.
Find the Magic Anvil.
Find 1,000,000 gold.
Defeat the Vampire Lord.
Beat the Forsaken Tower.
Defeat Thundersnow.
Reach level 20 with a Paladin.
Defeat the Watcher.
Find 1,000 ore.
Unlock the Wizard.
Something good happened...
Defeat the Three Councilors.
Find 50 secrets.
Defeat the Warden.
Unlock the Thief.
Unlock the Priest.
Use a monolith.
Unlock the prison cells.
Unlock Combo.
Defeat the Stone Guardian.
Receive a reward from the Imp.