Full list of all 61 Gloomhaven achievements.
The base game contains 50 achievements, and there is 1 DLC pack containing 11 achievements.
Activate 3 or more traps in a round
Have 5 mercenaries in retire in a single Campaign
Place 6 or more obstacles with the Cragheart in a scenario
Have a party of 4 mercenaries with at least one enhanced card each
Retire a mercenary
Enhance your first card
Kill an enemy with four or more negative conditions
Heal more than 60 hit points as a party in a scenario
Complete a scenario without any mercenary in your party exhausting
Attack for 20 or more damage in a single attack
Have the Scoundrel in your party loot 14 or more gold piles in a scenario
Have the brute in your party use Push or Pull actions 6 or more times in a scenario
Recover 7 burned cards with Spellweaver actions in a round
Unlock all the mercenaries in a single campaign
Complete "It's all just a game" scenario in Guildmaster
Complete all Travel missions in Guildmaster
Complete all Relic Scenarios in Guildmaster
Have a mercenary in your party deal more than 200 damage in a scenario
Win a scenario dealing no Melee damage
Complete a scenario in Normal difficulty or higher
Complete a Job mission in Brutal difficulty or higher
Use 5 or more Augments with the Mindthief in a scenario
Inflict 4 or more different negative conditions with the Tinkerer actions in a scenario
Complete a scenario without any mercenary in your party killing an enemy
Complete all Jaws of The Lion side scenarios
Loot all the treasure chests from Jaws of the Lion scenarios
Win a scenario with only mercenaries from Jaws of the Lion in your party
Have the Hatchet use The Favourite in 5 or more attacks in a scenario
Have the Demolitionist destroy 8 or more obstacles in a scenario
Have the VoidWarden grant 10 or more actions to other mercenaries in a scenario
Level up to 5 or more all the new Jaws of the Lion classes