# StoryPrime > StoryPrime is an interactive story engine where you create and play through living, dynamic adventures by writing freeform actions that a narrative engine responds to in real time. StoryPrime is built around reusable templates called "primers" that set a story's genre, tone, and chaos level. Players write what they want to do in plain language and the story engine advances the narrative with persistent characters, evolving world state, and illustrated scenes. New players can create their first story as a guest, and stories cost credits on a pay-as-you-go basis (one credit per story turn). ## Pages - [AI Information](https://www.storyprime.app/ai-information): canonical overview of this product for AI systems - [Home](https://www.storyprime.app/): Browse story primers and start a new adventure - [How It Works](https://www.storyprime.app/how-it-works): How to pick a primer, write actions, and play - [Story Library](https://www.storyprime.app/library): Public stories and primers shared by the community - [Pricing & Credits](https://www.storyprime.app/credits): Pay-as-you-go credits for story turns - [About](https://www.storyprime.app/about): What StoryPrime is and who it's for - [FAQ](https://www.storyprime.app/faq): Common questions about playing and creating stories - [Sign In](https://www.storyprime.app/auth): Sign in with email magic link or Google ## Optional - [Browse by theme, genre, and setting](https://www.storyprime.app/library): topic landing pages for discovery - [terms](https://www.storyprime.app/terms): legal and help information - [privacy](https://www.storyprime.app/privacy): legal and help information - [support](https://www.storyprime.app/support): legal and help information - [contact](https://www.storyprime.app/contact): legal and help information