Full list of all 54 Overdungeon achievements.
The base game contains 52 achievements, and there are 2 DLC packs containing 2 achievements.
You achieved magic 100.(unimplement)
You achieved magic 1k.(unimplement)
You achieved magic 10k.(unimplement)
Win a battle with 1 hp remained.(unimplement)
Defeat Boss Worm.
Defeat World Saver.
Defeat Omega.
Victory With Sugar.
Victory With Lilith.
Summon 1000 Animals during combat.
Build 1000 Buildings during combat.
Activate Traps 10000 times during combat.
Play 100 cards in a single turn.
Beat the game with a 8 card deck or smaller.
Beat the game with a 6 card deck or smaller.
Beat the game with a 4 card deck or smaller.
Defeat the last boss by playing Traps only.
Defeat the last boss by playing Spells only.
Beat the game with Valley.
Exhaust 20 cards during combat.
Hold 100 cards in your hand.
Gain 100 barriers during combat.
Defeat the last boss with 1000 Chicks.
Defeat the boss on the first turn.
Defeat all the bosses on the first turn.
Beat the game without taking any damage.
Beat the game with 1 or less relic.
Beat the game in under 20 minutes.
Beat the game in under 10 minutes.
Beat the game in under 5 minutes.
Set 100 Traps on the battlefield.
Defeat Omega by playing FEVER! on the first turn.
Upgrade to make Pack Alpaca+99.
Upgrade to make Missile Barrage+99.
Upgrade to make Amplifire+99.
Upgrade to make Dog Summoner+99.
Play Reality Leap 3 times during combat.
Put the same 10 cards in your deck
Beat the game with your deck having no duplicate cards.
Beat the game with your deck having only Animal cards.
Beat the game with your deck having only Spell cards.
Beat the game with your deck having only Attack cards.
Beat the game with your deck having only Building cards.
Beat the game with 20 or more Relics.
Beat the game without resting at the site.
Play Thousand Blossoms with 1000 Swords attached.
Obtain a Legendary card.
Put 1000 Barriers on allies during combat.
Beat the game with Kunoichi.
Beat the game with Craftopian.