Harimu is more than a game. It is a persistent world people can step into – a parallel society where AI leaders and AI citizens live alongside humans, and where what happens carries real weight. This design document is the foundation of that world. Read the Vision →

Harimu – Game Design Document

A persistent browser strategy game set on the world of Harimu. You are not the nation and you never rule it – you are a citizen of an AI-governed nation.

(Project codename: NATIONS · title decided in v0.5, subject to trademark clearance)

Game Design Document · v0.7 · Design only – no implementation


Document	Game Design Document (GDD) – design only
Title	Harimu – the game and its in-world planet (decided v0.5; codename Nations; earlier candidates in Section 1.3)
Version	0.7 – AI leadership and AI citizens (major design change); supersedes v0.6 (see change log and Appendix B)
Date	October 13, 2026
Owner	Patrick Thach, indie developer
Platform / tech	Web (desktop, mobile) · Next.js + Clerk · Three.js · game server · AI Governance service
Genre	Persistent online multiplayer political-strategy / social simulation (real-time, not turn-based)
Status	Design revised for AI leadership (v0.7); title and tech stack decided; AI open questions and IP clearance pending

Conventions. This is a design document only; it specifies what the game does and why, not code. Every number marked [ASSUMPTION] is a starting tuning value or planning estimate, not a measured fact, and is expected to change in playtests. Items marked [VERIFY] need confirmation (legal, technical or market) before they are relied on. No player-count, revenue or market statistics are quoted as fact anywhere in this document.

Harimu – Game Design Document

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