Dec 15

2025

Coming Thursday! “Undying Fortress”—Trailer and Demo available now!

Posted by: Mary Duffy | Comments (4)

We’re excited to announce that Undying Fortress is releasing this Thursday, December 18th! You can play the first three chapters for free today, see the trailer on YouTube, and check out the author interview as well! And don’t forget to wishlist it on Steam! The more wishlists we get, the better the game will do on Steam on release day.

Can you and your magic sword save the kingdom from death herself? Infiltrate a tower full of skeletons, decipher its secrets, and escape with your team!

Undying Fortress is an interactive dark epic fantasy novel by Yeonsoo Julian Kim, author of The Fog Knows Your Name, where your choices control the story. It’s entirely text-based, 500,000 words and hundreds of choices, without graphics or sound effects, and fueled by the vast, unstoppable power of your imagination.

For centuries, a mysterious fortress has floated above the kingdom of Serendal. Now it has fallen—and all of its secrets, treasures, and monsters are within reach.

You have fallen too: after expulsion from the Imperial Academy cut short your studies as an aspiring knight-scholar, you turned to the life of a mercenary. Wielding your family’s legendary blade Wicked Fate has won you a certain degree of fame and fortune, but now the ancient fortress presents the opportunity to climb much much higher.

Enter the tower with a motley group: fighters, spellcasters, and thieves; former friends and mentors from the Academy; even a prince of the realm. Within lurk countless skeletons, shambling Afflicted, ferocious flying creatures cobbled together from bones, and more. Commanding them is the fearsome Carrion Mother, an ancient deity long suppressed by the royal family. Only you and your companions will learn the secrets that Serendal’s rulers want to keep hidden.

Fight off undead monsters to protect Serendal; or learn to wield forbidden mortuary magic and get the creatures to do your bidding. Uncover ancient secrets that may shake the realm to its core, or keep them hidden and become the power behind a new throne. Win glory with your magic sword and prove that you are worthy of knighthood – or just gather treasure to come out of this the wealthiest mercenary who ever lived.

  • Play as male, female, or nonbinary; gay, straight, or bi.
  • Choose your specialty: weapons, stealth, magic, negotiation, or scholarship
  • Romance a mercenary comrade-in-arms, a loyal and confident swordswoman, a spellcaster friend-turned-rival, a trickster prince, a cursed guard, or even a terrifying necromancer.
  • Fight bone wolves, shambling undead, and other horrors to reach the heart of a magical fortress!
  • Unlock the secrets of ancient magic to command an army of skeletons!
  • Shatter the boundaries of time itself to right ancient wrongs, and cross dimensions to rescue your friends from the land of the dead.

The Undying Fortress awaits!

Notable Replies

  1. Avatar for JBento JBento says:

    Yeah GIFs  Tenor

  2. The second r in Fortress is missing in the title of the forum thread?

  3. Avatar for Naldek Naldek says:

    In Chapter 3 :

    “That. That whole thing. What were you two even talking about? It was like you had a whole conversation without really saying anything. You never mentioned anything to me about practicing mortuary magic in school.”

    Should not happen if you told the mercenary company in chapter 1 that you left the school because you practiced mortuary magic.

  4. This would be good to email to support(at)choiceofgames(dot)com - it’ll be most likely to get seen and corrected that way.

Continue the discussion at forum.choiceofgames.com

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