Status: Accepted
Date: 2026-05-12
Decision#
V2 owns all deterministic gameplay, replay, and platform-cert-sensitive runtime surfaces locally. No external service may influence frame simulation after match start.
Boundary#
Inside the sovereign core:
- hitbox, hurtbox, collision, frame-data runtime
- motion input parser and input buffer
- rollback simulation and deterministic AI seeds
- replay input stream and replay container format
- gameplay-affecting save data schema
- anti-cheat client integration
Outside the sovereign core:
- MP4 replay export
- thumbnails and highlight reels
- lore, codex, wiki, and companion commentary
- matchmaking recommendations before match start
Implementation Contract#
External AI or service output can be consumed by online rollback only if it is baked into the deterministic match-start payload and identical on every peer.