D-Day 마왕: 용사가 오기 전에

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Rated for 3+
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Content rating
Rated for 3+
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About this game

According to the prophecy, the Hero will arrive at this castle in ten days and defeat the Demon King.

You are that Demon King.

You can fight and defeat the Hero, bribe him to become your subordinate, make a truce, or flee under the cover of night.

If you do nothing—it is just like the original story.

■ Ten-Day Schedule

A day consists of two parts: morning and afternoon. You choose to engage in training, castle construction, espionage, or espionage.

If you train loudly, the Hero will become stronger upon hearing the rumors, and if you move stealthily, the Hero will become suspicious.

Every night, the Hero also takes action. The "Hero's Day" card reveals what happened that night.

■ Choices Continue the Story

Send a succubus disguised as a princess to the Hero's party. Intercept a letter from the Hero's mother.

Catch the skeleton knight who intends to retire. The Goblin unit has been on strike for three days, eating the same mushroom soup.

Once you make a choice, it returns as an event, and the story of that board concludes at the end.

■ The Hero's Hidden Personality

If the Hero is the "Chosen One of the Holy Sword," you cannot win in a decisive battle. If the Hero is "Integrity," bribes will not work.

You must first discover the Hero's personality by flying a bat, and then choose the remaining path.

■ No Dice

The D-0 result follows fixed rules. A "D-0 Prediction" is displayed for each path,

so if you lose, you can see why you lost.

■ 5-8 Minutes Per Game

Play a round during your commute. You can continue playing even if you close the app midway.

5 Endings × 4 Demon Lord's Ways + 7 Hidden Endings — Let's fill out the ending encyclopedia.

The base story is permanently free. There are no ads or logins.
According to the prophecy, a hero will come in ten days. You are that Demon King. The ending has not yet been decided.
Updated on
Oct 13, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
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  • No data collected
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What’s new

첫 출시 — 열흘 뒤 용사가 온다. 마왕의 일정을 짜 보세요.