Start free with ChronoStates. Unlock world-building, publishing, and AI book generation as you grow.
Free
Free
5 prebuilt scenarios
Sandbox Mode or World Builder
Event generation
500-word End of Year summary
Voyager
Perfect for Worldbuilding
$10/mo
Worldbuilding and play
ChronoStates Sandbox access
Prebuilt scenarios added frequently
100 events per month
Generate a sample chapter of your book
1,000-word End of Year generation
Most Popular
Explorer
$30/mo
Everything in Voyager
5 books a month
5 songs a month
Image generation at End of Year events
Share worlds to Content Library
Creator
$50/mo
Everything in Explorer
5 books a month
10 songs a month
1 audiobook a month
Book Cover Generation
150 events per month
Connectors to post to Substack/Patreon/YouTube/TikTok
Studio
$100/mo
Everything in Creator
5 books a month
10 songs a month
1 audiobook a month
1 music video a month
1 video series a month (10 x 30s episodes)
Book Editor access
200 events per month
Frequently Asked Questions
Can I change plans later?+-
Yes. You can upgrade or downgrade at any time from your billing settings. When upgrading, you'll be charged a prorated amount. When downgrading, the new rate takes effect at the next billing cycle.
What happens to my timelines if I downgrade?+-
Your existing timelines, worlds, and data are never deleted. However, if you exceed your new plan's limits, you won't be able to create new events until you're within the limits. Locked features like Create Your Own World or Book Pipeline will become read-only.
What AI models are used?+-
Every chapter reviewed by three independent AI models before you see it.
What is ChronoStates?+-
ChronoStates is an interactive world building pipeline. Start with a prebuilt or custom scenario, make decisions, and watch consequences cascade across history. At any point you can export your timeline as an AI-generated book, post to Substack or Patreon, or build a full world bible with characters, factions, and lore.
What is Book Pipeline?+-
The Book Pipeline turns your world into a finished novel. Every chapter reviewed by three independent AI models before you see it. Books run 20-40 chapters, and are available from Explorer and up.
What are the event generation styles?+-
In Sandbox Mode, you can choose how events are written: Historian (dry, factual), Storyteller (narrative, immersive), Satirist (irreverent, Pratchett-esque), or War Correspondent (urgent dispatches). Explorer and above can also enter a completely custom style description.
Is there a free trial?+-
The Free plan is always available with no credit card required. You get 5 prebuilt scenarios with event generation and 500-word year-end summaries to experience the core gameplay.