Thorn & Tsar

18+ ONLY

Interactive dark romance

Choose your villain.

Bratva bosses, fae princes and gods in chains. Set the tone from sweet to ruthless and the spice from 1 to 10. An AI writes your book one chapter at a time, and every choice is yours.

Join the waitlist Try the demo

Free to join. Early access goes to the waitlist first.

How it works

Three steps to your own book

  1. Build your book

    Pick the world, the love interest, the tone, the spice level, your tropes and the ending you want.

  2. Make the choices

    Every chapter ends with a choice. What you pick shapes the next chapter.

  3. Talk to them

    Between chapters, chat with your love interest. They stay in character and remember the story.

Read a page

From Owed, chapter one

Dark Bratva empire · with Lev, 36

Chapter one

Forty thousand

Your brother owes the Zorin Bratva forty thousand dollars, and the man holding that debt has decided you will be the one to pay it.

Lev Zorin doesn’t raise his voice. He doesn’t need to. The club has emptied around you without anyone being asked: glasses left on the bar, snow ticking against the black windows, the doors locked from the inside.

His men call him the Tsar. Up close, you understand why.

‘Your brother ran,’ he says, turning a heavy gold ring on his finger. ‘You didn’t. I find that interesting.’

‘Everyone pays,’ he says softly. ‘The only question is how. Sit. I’d hate for you to make this harder than it needs to be.’

What do you do?

Sit down and negotiate. Throw your drink in his face.

Pick one to open the demo and see where it goes.

Your book, your rules

You set the dials

Tone is how the love interest and the plot treat you. Spice is how much happens on the page. Change either one mid-story.

Tone

  • SweetTender, safe and swoony.
  • SteamyFlirty tension that keeps building.
  • DarkDanger, secrets and a morally grey love interest.
  • RuthlessCruel, possessive and merciless. Always between consenting adults.

Spice level

  • 1 · LongingLonging looks and hand-holding.
  • 2 · FlirtyBanter and almost-kisses.
  • 3 · First kissKissing on the page.
  • 4 · HeatedPassionate kissing and touching. Clothes stay on.
  • 5 · Closed doorThings heat up, then the scene fades out.
  • 6 · Open doorOn the page, but about feelings, not graphic detail.

Levels 7 to 10 unlock after a quick age check.

  • 7 · SultryMore detail on the page.
  • 8 · SpicyDetailed intimate scenes.
  • 9 · SizzlingVery detailed intimate scenes.
  • 10 · ScorchingFully explicit.

Pick your world

Thrones, thorns and chains

  • Bratva empire

    A debt you didn’t make, a club full of snow and a man his men call the Tsar.

    With Lev Zorin, 36

  • Fae court

    Never thank a fae. Never eat their food. Never let a prince save your life.

    With Prince Caelan

  • Realm of gods

    A god in chains, a throne of black stone, and you hold the only key.

    With Ashar, god of fire

More worlds

  • Royal palaceThirty days until your arranged wedding, and one bodyguard who shouldn’t care.
  • Modern dayYour rival is now your co-CEO. The photographers arrive at ten.
  • Deep seaEvery hundred years, the village sends someone to the sea. This year, it’s you.

Tropes, pick up to three

  • Enemies to lovers
  • Fated mates
  • Forbidden love
  • Arranged marriage
  • Made a deal
  • Forced proximity
  • Possessive hero
  • Morally grey
  • Slow burn
  • Bodyguard
  • Monster romance
  • Who did this to you?

Or create your own love interest: any name, any type, any adult.

Questions

Good to know

Who writes the stories?

An AI writes every chapter, shaped by your settings and your choices. You make the decisions. It does the writing.

How spicy does it get?

You choose, from 1 (longing looks) to 10 (fully explicit). Levels 7 to 10 are for verified adults. The story always comes first, and you can change the spice whenever you like.

Is it only dark romance?

No. Every book has a tone dial, from Sweet to Ruthless. Write a soft slow burn, or a love story with real teeth.

Is it adults only?

Yes. Thorn & Tsar is 18+ only, and levels 7 to 10 need a quick age check. Every character is an adult, and stories never include real people.

What will it cost?

Free readers get chapters every day. Premium, planned at about US$12.99 a month, removes the limit. People on the waitlist hear about pricing first.

When can I start reading?

Early access opens to the waitlist first. Join and we'll email you when it's ready.

Early access

Your throne is waiting

Join the waitlist and tell us your favourite tropes. It takes 30 seconds.

Join the waitlist Try the demo