Cosma: Fantasy LitRPG

Cosma is interactive fiction- you play the protagonist. You step into a fantasy world as the person it's happening to, every choice is yours, and the story remembers all of them down to the reason you gave at the start. Reach the end and someone reads your whole run back to you: what it cost, and who paid for it.

There's a character who talks to you the whole way, live, and remembers you across the entire story.

Every world runs on the Coil: a progression system where getting stronger costs you something real, and the choices you make follow you and come due later. If you love a good progression ladder: cultivation, xianxia, LitRPG, story RPGs, this is one you'll want to climb: a cultivation story where the fantasy is yours to steer and the progression is yours to earn.

The worlds range across fantasy and myth, with new interactive stories added as they're written.

Cosma is made for readers. If you binge progression fantasy or LitRPG on your commute, keep a cultivation novel going at night, or ever wished an isekai or wuxia story would let you make the call yourself, this is your next world. A text-first, choice-driven adventure and it remembers you.

Recent changes:
Cosma now speaks Hindi.

Choose your language in You → Story language, and read every story — and talk to every character — in हिंदी. Switch back to English anytime; the story follows you either way.

Plus a cleaner, quicker feel across the app.