If you're looking for another PlotPilot alternative, StoryNest.ai is worth a look. This AI-powered writing tool lets you craft stories, novels and interactive tales with character generation, world-building and AI editing assistance. It can handle multiple formats, and you can collaborate with others and track story statistics, too. That makes it adaptable for different creative writing needs.
You could also try StoryScape AI, which uses Chat GPT and DALL-E to create stories. It lets you create chapters you can customize and share stories with others, for a more interactive storytelling experience. The app is available on the web and Google Play, and you can try it with a free trial.
If you're into text-based RPG adventures, AI Adventure offers a different kind of storytelling with an infinite number of customization options and a powerful editor. It can create story, images and audio on the fly, and it's got a community of people creating adventures, too, so it's a good place to try out interactive storytelling.