CDO2

Take control of the dungeon and defeat the invading Heroes!

You are the Chief Dungeon Officer (CDO)!

Your core mission is to keep your dungeon operational for as long as possible.

Command the Demon King and deploy monsters to fend off relentless hero hordes!

ㆍOver 90 unique monsters

Monsters possess distinct attributes based on their type, race, and role.

Summon the right monsters for powerful attribute synergy!

ㆍStrategic items for critical choices

More than 80 pieces of equipment for individual monsters.

More than 30 Totems to place in each dungeon room.

Over 90 Relics that provide dungeon-wide effects!

Select the perfect items to complement your strategy!

ㆍDynamic random events

Experience more than 100 story-driven events!

Review upcoming events and devise your optimal plan!

ㆍThe dungeon's fate hangs in the balance

Invest in long-term research,

Use Goblin Bandits and raids to secure scarce resources,

Empower your Demon King by consuming monsters,

Make decisive choices and witness their impact in battle!

ㆍPermanent secondary attributes

Unlock incredible advantages as you level up secondary attributes.

Acquire as many as you can through gameplay!

ㆍPush past your limits!

Survive 50 years to clear the game, then tackle higher-difficulty Challenge Mode!

Penalties stack as the difficulty rises.

Test your personal strategy under extreme conditions!

ㆍOngoing weekly competitive mode

A competitive mode where you battle other users with no set end point.

Rewards are issued weekly with rank resets every Monday.

Showcase your skills under new weekly conditions!

*The PC app player may not function correctly. We recommend playing on mobile.

What's New in the Latest Version 02.27.03

Last updated on Nov 6, 2024

CDO2: Dungeon Defense ver 02.27.03
- Bug Fix, Others

CDO2: Dungeon Defense ver 02.27.02
- Bug Fix

CDO2: Dungeon Defense ver 02.27.01
- Others

Please refer to the in-game patch notes for details.