Open Road City — Game Design Document
The definitive design specification for a solo open-world driving and progression game on Roblox.
Document Navigation
Section titled “Document Navigation”| Section | Focus Area | Status |
|---|---|---|
| Overview & Pillars | High concept, player fantasy, design pillars | Stable |
| Core Loop | 30s driving feel, session jobs, macro car collection | Stable |
| Mechanics | Physics, drifting, refueling, collision handling | Draft |
| Systems & Economy | Cash, Rep, vehicle pricing curves, upgrade sinks | Draft |
| World & Content | Map districts, vehicle roster, discovery POIs | Draft |
| UI & UX | Minimalist driving HUD, mobile controls, garage UI | Draft |
| Technical & Roblox | Network ownership, ProfileService, StreamingEnabled | Draft |
| Roadmap | Milestone stages from M0 prototype to M4 soft launch | Draft |
| Decisions Log | Accepted Architecture and Design Records (ADR) | Stable |
| Open Questions | Active design ambiguities and pending balance questions | Draft |
| Changelog | Audit log of all Hermes integrations and design updates | Stable |