SomethingBig World adds weather-aware NPCs.

The umbrella is a small detail with a big implication: AI-generated software is starting to feel responsive and alive, not merely functional.

• –Real-world weather makes the demo depend on external state rather than static content.
• –NPC reactions show the model handling coordinated world logic, not just visual polish.
• –Multiplayer gameplay creates a tougher test for autonomous coding, exposing bugs and performance issues.
• –Long-running agent loops could make persistent simulation-building practical for small teams.
• –Developers still need tests, observability, and human review to keep iterative agents from degrading the codebase.