Tap to the beat, summon monsters, and defend the small castle!

A dark magician who wanted to live a quiet life of research.

All I did was bring the injured princess and treat her, but rumors spread throughout the kingdom that I had kidnapped her.

“I want to live here! I have to get married if I go back.”

The princess with no intention of returning and the soldiers swarming to rescue her.

An unexpected defensive battle begins to reclaim the Black Mage's peaceful research life!

Beat Defense is a game that combines rhythm games with auto-battle defense. If you input commands in time with the beat, the summon gauge fills up, and the summoned monsters fight to defend the castle.

- Rhythm play with one button

  Input the moment the rune touches the judgment line. Aim for a PERFECT judgment with precise timing, and hold down long notes to continue.

- Defense battle with cute monsters

Unique allies such as Slime, Forest Wolf, Little Imp, and Frost Skeleton Knight are automatically summoned to block enemies.

- Legendary monster summoned via combo

  50-combo Slime King, 100-combo Death Knight, 150-combo Bone Dragon, 200-combo Balrog! Summon powerful reinforcements with uninterrupted performance.

- Three-stage invasion lasting 90 seconds

  Endure increasingly fierce attacks during the basic 90-second battle. Boss battles against the Siege Golem, Paladin, and Champion await.

- 5 stages and record challenge

  Break the highest score and maximum combo for each stage and aim for 3 stars. 2x and 3x speed play are unlocked in cleared stages.

The controls are simple. Enter the rhythm with the spacebar or a mouse click, and hold the button for long notes.

Press once, and let's protect together.

Please protect the Dark Mage's laboratory again today!