Play A Princess of Mars — an interactive story where YOU are the hero

after the classic by Edgar Rice Burroughs, 1912

Wake on dying Mars with the strength of a giant in its thin red gravity. Play John Carter among the green warriors of Thark, win the trust of the princess Dejah Thoris, and leap into a war for a whole world's last breath of air.

A moment from one playthrough

The atmosphere plant that keeps all Barsoom breathing is failing, its keeper dead, and only you know the nine-thought code to restart it. Green riders thunder across the dead sea-bottom behind you. Force the great door and pray you remember the code, or turn and buy time against the horde first?

Play A Princess of Mars now →

Start free — 10 diamonds when you confirm your email. No subscription; narrated aloud; plays in 26 languages.

The Somni Tales reader: an open book with two pages of a story, an ink illustration, and a “write what you do” bar below.

Live A Princess of Mars, don't just read it

In this interactive telling of A Princess of Mars, you don't read about the hero — you are the hero. The Storyteller keeps Edgar Rice Burroughs's world true to the original — its characters, its places, its mood, all held as canon — then narrates every scene aloud and draws the moment you're in as an ink illustration. You type or speak what you do next, and the world answers: it remembers the promises you made, the things you took, and the people you crossed. Follow Edgar Rice Burroughs's plot faithfully, or step off it and watch a brand-new version of A Princess of Mars unfold — one that still reaches a real ending.

How it works

The Storyteller holds the world of the book as canon — its characters, places and mood — and opens with you as the hero.
Type or speak anything: the world reacts, remembers, and stays true to the original's spirit.
Every playthrough is a brand-new story. Follow the plot — or break it and see what happens.

Common questions about playing A Princess of Mars

Is A Princess of Mars free to play on Somni Tales?

You get 10 diamonds free when you confirm your email — enough to open A Princess of Mars and step into the first scenes. After that, diamonds cost from $5 with no subscription, and unused diamonds are refundable within 14 days.

Do I have to follow Edgar Rice Burroughs's original plot?

No. The Storyteller holds A Princess of Mars as canon so its world, characters and mood stay true — but your choices write a brand-new telling. Follow the classic beats, or break from them and see where the story goes.

Can I play A Princess of Mars aloud and in my own language?

Yes — every scene is narrated aloud word by word, and A Princess of Mars plays in 26 languages. Change the language, voice and reading speed any time from the reader's Settings.