Here's an updated set of prompts for Urban Sense, the cross social media RPG game, incorporating the self-generative elements we discussed:

1. **Setting**: Urban Sense is a hidden urban fantasy RPG embedded within social media platforms, allowing players to create characters, stories, and adventures that evolve dynamically as they interact with the game world and each other.

2. **Mechanics**: Players engage in a variety of self-generative activities, such as crafting unique items, organizing events, trading resources, and influencing AI chatbots, to shape the game world and drive its ongoing evolution.

3. **Theme**: The game combines real-world social media interactions with magical and supernatural elements, emphasizing player agency and the power of collaboration in creating a vibrant, living game world.

4. **Discovery**: Players discover the game by noticing patterns, hidden symbols, and peculiarities within social media content, and then delve deeper into the secret gaming experience by actively participating in its user-driven story and mechanics.

5. **Evolving gameplay**: The game world and narrative evolve dynamically based on player actions, choices, and contributions, ensuring that each player's experience is unique and engaging.

These updated prompts should provide a solid foundation for exploring the self-generative aspects of Urban Sense and fostering a rich, immersive gaming experience within all social platforms.