Embark on a dungeon adventure and outwit the invading Heroes!

Step into the role of Chief Dungeon Officer (CDO) and take command!

Your ultimate objective: sustain your dungeon's operations against all odds.

Lead the Demon King and strategically position monsters to repel waves of heroic invaders!

ㆍOver 90 unique monster types

Distinct creatures featuring specialized traits based on species, lineage, and battlefield roles.

Optimize monster combinations to maximize attribute synergies!

ㆍDiverse strategic gear options

80+ customizable equipment pieces for individual monster enhancement.

30+ room-enhancing Totems for tactical dungeon placement.

90+ dungeon-wide Relics with powerful global effects!

Select gear strategically to amplify your combat approach!

ㆍDynamic random encounters

100+ story-driven events with unique narratives!

Anticipate upcoming events and devise winning tactics!

ㆍEvery decision shapes your dungeon's destiny

Invest in extensive research projects,

Utilize Goblin Bandits' raids to supplement limited resources,

Empower your Demon King through monster consumption,

Witness how your choices unfold in climactic battles!

ㆍPersistent secondary traits

Unlock game-changing advantages through leveled attributes.

Accumulate these bonuses through skilled gameplay!

ㆍPush beyond perceived limits!

Complete the 50-year campaign and test yourself in heightened Challenge Mode!

Escalating difficulty introduces compounding handicaps.

Adapt your strategy to survive extreme conditions!

ㆍEndless competitive seasons

Compete against rival players without predetermined endpoints.

Weekly rank resets with Monday reward distributions.

Demonstrate mastery under changing weekly parameters!

*Optimal performance on mobile devices; PC app may experience issues.

Latest Version 02.27.03 Updates

Updated: November 6, 2024

CDO2: Dungeon Defense version 02.27.03
- Bug fixes and optimizations

CDO2: Dungeon Defense version 02.27.02
- Bug corrections

CDO2: Dungeon Defense version 02.27.01
- Miscellaneous improvements

Complete patch details available in-game.