# 0002: Five Ruleset Cells

Status: Accepted

Date: 2026-05-25

## Context

The V5 product promise spans five genre heritages: Urban Crime, Period Drama,
Frontier, Monster Hunter, and Sci-Fi. The design needs these to feel distinct
without becoming separate products.

## Decision

V5 ships five ruleset cells: Urban, Period, Frontier, Hunter, and Sci-Fi. Each
cell receives cell-specific controls, pacing, camera treatment, AI behavior,
mission structure, and feel-test coverage while sharing core runtime services.

## Consequences

- Cross-cell systems must preserve the feel of the active cell.
- Shared modules cannot flatten movement, combat, narrative, or UX into one
  generic mode.
- Testing must include at least one explicit feel scenario per cell.