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