Cosmonaut AI

Ian Matson

About this app

Describe any world - a noir mystery in 1940s Chicago, a space station hiding dark secrets, a magical kingdom on the edge of war - and Cosmonaut builds it into a branching story shaped entirely by your choices.

✨ HOW IT WORKS
1. Describe your story - set the genre, the setting, the mood. You set the stage, AI fills in the details.
2. Every choice branches - decisions create new paths. Write custom actions, explore unexpected directions. Your story grows with every tap.
3. See the whole picture - a visual story map shows every path through your narrative. Jump between branches, discover what-ifs, find the endings you missed.

🚀 KEY FEATURES
• AI-Powered Storytelling - Describe any premise and watch a rich, branching narrative unfold in real time. Stories stream to your screen as they're written.
• Your Choices Matter - Every decision opens a new path. Choose from AI-generated options or write your own custom actions to take the story anywhere you imagine.
• Visual Story Map - See your entire story tree at a glance. Navigate between branches, track your exploration, and discover paths you haven't taken yet.
• Audio Narration - Listen to your stories with high-quality AI voices. Choose from multiple narrators, adjust playback speed, and enjoy stories hands-free.
• Share & Explore Together - Share your story worlds with friends and family. Create invite links, explore together, and see how others navigate the same story differently.
• Beautiful Dark Theme - Designed for immersive reading with a premium space-themed interface that looks stunning on any device.
• Content Controls - Choose vocabulary level and content filters to make stories appropriate for the whole family. Child, teen, and adult settings available.

📖 BUILT FOR FAMILIES
Cosmonaut is designed to be enjoyed by readers of all ages. Set content filters and vocabulary levels to create age-appropriate adventures. Create stories together - each family member can explore different branches of the same world.

🎧 LISTEN ANYWHERE
Generate high-quality audio narration for any story passage. Multiple AI voices to choose from, lock screen controls, and background playback - perfect for bedtime stories or on-the-go adventures.

🌟 FREE TO START
Create stories and explore branching narratives with a free account. Upgrade to Explorer or Cosmonaut tiers for more worlds, more choices, and expanded features.

Cosmonaut - where every choice creates a new world.

What’s new

Welcome to Cosmonaut! Create your own AI-powered interactive fiction adventures. Build worlds, craft stories, and explore branching narratives with dynamic AI storytelling. Initial release.