CDO2
Become the Chief Dungeon Officer (CDO) and command your dungeon against waves of heroic invaders! Your mission: keep your dungeon thriving for as long as possible. Deploy over 90 unique monsters, each with distinct attributes based on type, race, and role, crafting synergistic teams to overcome the heroes.
Strategic choices are key. Equip your monsters with over 80 different items, strategically place over 30 Totems in each dungeon room, and leverage over 90 Relics to enhance your entire dungeon. Adapt your strategies to the ever-changing battlefield.
Over 100 unique events unfold with their own captivating stories, demanding careful planning and adaptation. Invest wisely in long-term research, utilize Goblin Bandits for resource acquisition, and strategically sacrifice monsters to boost your Demon King's stats. Your choices directly impact the battle's outcome.
Develop permanent secondary attributes for incredible advantages. Maximize these attributes through gameplay to gain a significant edge. Aim for the ultimate challenge: survive 50 years to complete the game, then test your mettle in the higher-difficulty Challenge Mode. As the difficulty escalates, so do the penalties, demanding innovative strategies for success.
Engage in a year-long competitive mode against other players without separate clears. Weekly ranking resets and rewards every Monday offer a constantly evolving challenge. Show your strategic prowess and dominate the leaderboards!
Note: Optimal performance is achieved on mobile devices. PC app players may experience suboptimal functionality.
What's New in Version 02.27.03 (Last Updated: Nov 6, 2024)
- CDO2: Dungeon Defense ver 02.27.03: Bug fixes and other improvements.
- CDO2: Dungeon Defense ver 02.27.02: Bug fixes.
- CDO2: Dungeon Defense ver 02.27.01: Other improvements.
See the in-game patch notes for detailed information.
CDO2





Become the Chief Dungeon Officer (CDO) and command your dungeon against waves of heroic invaders! Your mission: keep your dungeon thriving for as long as possible. Deploy over 90 unique monsters, each with distinct attributes based on type, race, and role, crafting synergistic teams to overcome the heroes.
Strategic choices are key. Equip your monsters with over 80 different items, strategically place over 30 Totems in each dungeon room, and leverage over 90 Relics to enhance your entire dungeon. Adapt your strategies to the ever-changing battlefield.
Over 100 unique events unfold with their own captivating stories, demanding careful planning and adaptation. Invest wisely in long-term research, utilize Goblin Bandits for resource acquisition, and strategically sacrifice monsters to boost your Demon King's stats. Your choices directly impact the battle's outcome.
Develop permanent secondary attributes for incredible advantages. Maximize these attributes through gameplay to gain a significant edge. Aim for the ultimate challenge: survive 50 years to complete the game, then test your mettle in the higher-difficulty Challenge Mode. As the difficulty escalates, so do the penalties, demanding innovative strategies for success.
Engage in a year-long competitive mode against other players without separate clears. Weekly ranking resets and rewards every Monday offer a constantly evolving challenge. Show your strategic prowess and dominate the leaderboards!
Note: Optimal performance is achieved on mobile devices. PC app players may experience suboptimal functionality.
What's New in Version 02.27.03 (Last Updated: Nov 6, 2024)
- CDO2: Dungeon Defense ver 02.27.03: Bug fixes and other improvements.
- CDO2: Dungeon Defense ver 02.27.02: Bug fixes.
- CDO2: Dungeon Defense ver 02.27.01: Other improvements.
See the in-game patch notes for detailed information.