Where every game is a world worth exploring.

Fun and learning, mapped as one ordered universe — hundreds of worlds to explore, free to play.

Play free For parents

✦ Hover a star to peek inside

Pick a sky

✦ Clear, honest pricing✦ Privacy-first✦ Age-appropriate, always✦ COPPA / kidSAFE-grade255+ worlds · new ones weekly

Enter a world

The bright stars — gateway-grade flagships that invite a curious 10-year-old into a whole genre.

★ Marquee · all-ages

Unwritten

One story engine, every reading level — a pure-fun choose-your-path adventure and a genuine reading surface at once.

Begin a story →

Part of the Cosmos family subscription

Reading level5th grade

“At the end of the corridor, two doors waited. One breathed warm dragon-smoke; the other glowed with lamplight and the scratch of a detective’s pen. You had to choose.”

Build an empire · 4X

Aetheria

Your first 4X — built to welcome you in.

Command live · RTS & MMO

Vanguard & Meridian

Real-time tactics and a persistent world to live in.

42%play

● Play 42%● Learn 58%

The needle, not the nag

An orbit of play and learning — never a red zone

For a kid it's a friendly gauge of the week. For a parent it's an honest dashboard. Leaning toward fun is fine; leaning toward learning is fine. Mastery only counts when a skill shows up across two different games — cumulative, never lost.

● eduFit graded honestly✦ Mastery lights a star◆ Meets each kid per skill

Your sky is waiting.

Start exploring in one click — no card needed. Price lives on a clean plans page, exactly where it belongs.

Play free Parents — see plans

A quiet Draco hides in our sky. ✦