Fortress Defense: Castle TD

Command 4 legions, collect 24 heroes and defend your castle in 3D battles.

Small soldiers. Big decisions. Build your army and hold the last fortress!

Fortress Defense is a 3D tower defense strategy game about troop placement, hero collection and surviving enemy waves.

CHOOSE YOUR LEGION Lead humans, beasts, ancient energy beings or wraiths. Each of the 4 legions has 8 basic troop types, 6 exclusive heroes, its own worker and a distinct fortress. Combine melee fighters, ranged damage, anti-air units and support roles.

SHAPE YOUR TACTICS Choose between two promotion paths and upgrade troops through 3 tiers. Different equipment, silhouettes and attack animations bring each role to life. Position your front line, manage gold and use fortress skills to support your army.

COLLECT 24 HEROES Recruit and strengthen heroes. In battle, summons draw from heroes you own in your chosen legion. Learn hero selection and placement in the tutorial. Connect an account and choose a one-time tutorial hero gift; internet access is required.

RISK, REWARD AND BOSS BATTLES Summon extra enemies to grow future income, or invest in immediate defense. Earn bonus gold for fast clears, face bosses every 10 rounds and enter endless challenges beyond round 50.

DAILY PROGRESS Claim 7-day attendance rewards and take on the rotating legion challenge. Optional rewarded ads offer a daily recruitment chest, extra challenge rewards, hero upgrade support and an attendance bonus. Each daily ad reward is available once per Korea-time day.

Play in Korean, English, Japanese, Simplified or Traditional Chinese, Spanish, Vietnamese, Arabic, Filipino, Indonesian, Malay or Thai.

Guest play is available. Account connection and internet are required for the real tutorial gift and cloud saves. Cloud saves use the same account and platform; iOS also requires iCloud. New games require energy. An optional rewarded ad unlocks 2x speed for 6 hours; clearing the final boss of round 50 also enables 3x within that same ad access period.