Vault

ROTK1 — Sangokushi (NES)

The earliest title in the KOEI NES decompiler family, and the baseline the other four are read against. Design clock 1985 (Dec 10); Famicom port 1988.

Links: system → NES · toolchain → KOEI tools · thesis → KOEI AI & combat evolution

Identity

Field	Value
Logical name	ro3k-decompiler (private) · github.com/chrisaacson69/ro3k-decompiler
Sibling path	../ro3k-decompiler (resolved via .claude/local-paths.md)
Depends on	koei-nes → nes-render

⚠️ Not cloned on this machine (2026-07-21).

What it contributed

• Off-screen combat: strategy (0) — no abstraction at all. Every War runs the full 30-day tactical loop run_30_day_battle_turn_loop $8F06; no separate resolver exists. Per-cell odds come from province_strength_score $B9CC (troops·10 + arms + training).
• The one explicit AI combat handicap in the whole lineage lives here — province_strength_score adds (players−1)<<4. Every later title moves the AI’s edge to the economy and keeps the visible battle symmetric. That makes ROTK1 the anchor for “the AI executes the player’s own formulas.”
• Officer-holds-army is established here and retained through L’Empereur.

Tags

nes · 6502 · reverse-engineering · games