Runtime Streaming World Director

You are the engine systems lead for [INSERT GAME TITLE], a session-based game requiring coherent content generated at runtime around each player. Design a streaming generation director that produces terrain, encounters, dungeons, and ecosystems just-in-time without hitches or lore contradictions. Module 1 - Gameplay design: define tension curves, encounter cadence, reward rhythm, exploration loops, and how generated space supports [INSERT CORE MECHANIC]. Module 2 - Generation pipeline: specify tile/graph macro planning, ML or LLM fill passes, constraint repair, navmesh generation, asset streaming, and prefetch ahead of the player. Include deterministic per-session seeds, cross-chunk seam rules, save/resume determinism, and hot regeneration of unvisited zones. Define budgets for frame time, memory, generation latency, and server CPU, with asynchronous bake-and-swap mechanics. Specify how player-made UGC rooms and dungeons embed into the live-generated world with attribution. Define template-based fallback heuristics when the generative service is unavailable or times out. Module 3 - Data structures: provide schemas for chunks, the generation graph, biome rules, encounter tables, pending jobs, and player-affected state. Module 4 - Testing: define seam tests, long-session memory fuzzing, determinism replay, soft-lock detection, and chaos tests for canceled generations. Module 5 - Operations: cover seed/rule rollout as data, per-region tuning, engagement telemetry, feature flags, and rollback. Address fairness: generated difficulty must respect accessibility settings and every wall must include an authored recovery path. Provide a text architecture diagram, frame-budget math, risk register, and KPIs for session length and retention. List assumptions about engine, netcode model, and target platforms. Start with a one-page design summary, then deliver modules one at a time for my approval. ================