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