chore: expand game-design overview planned topic stubs

docs/game-design/overview.md

@@ -4,7 +4,7 @@ This folder holds **vision-level** design: what we want players to feel, do, and
 
 ## Summary
 
-Neon Sprawl’s design work here starts from **concrete visions** of mechanics, items, abilities, skills, professions, zones, and related systems. Documents below are added as we write them; each should stay opinionated and specific enough to argue with, without pretending to be a full GDD.
+Neon Sprawl’s design work here starts from **concrete visions** of progression, places, risk, economy, social play, combat, and the items/abilities that express them. Documents below are added as we write them; each should stay opinionated and specific enough to argue with, without pretending to be a full GDD.
 
 ## Artifact index
 
@@ -18,10 +18,22 @@ Link new files here when they exist; remove or rewrite this subsection once the
 
 - **Skills** — progression feel, caps, synergies, failure modes.
 - **Professions** — identity, fantasy, how they differ from pure skill bundles.
-- **Zones** — tone, danger, travel, faction or economic role.
+- **Zones** — tone, danger, faction or economic role of a place.
+- **Travel & connections** — how places link (gates, costs, downtime, danger en route); complements zone identity.
 - **Mechanics** — loops, constraints, what the server vs. client must honor.
 - **Items** — categories, rarity philosophy, crafting vs. drops.
 - **Abilities** — inputs, timing, combo with items and skills.
+- **Gathering & resources** — nodes, competition, exhaustion, what “open world” contesting feels like.
+- **Crafting & recipes** — depth vs. breadth, failure, specialization; pairs with items but is its own loop.
+- **Economy** — currency velocity, sinks, trade vs. self-sufficiency, how wealth shows up in play.
+- **Factions & reputation** — who remembers you, grudges, access gates, story pressure.
+- **Combat pillars** — PvE vs. PvP stance, readability, time-to-kill, what “fair” means here.
+- **Death, loss & recovery** — stakes on failure, recovery paths, anti-grief boundaries.
+- **Risk & security bands** — safe pockets vs. wild space; where optional PvP and theft sit (aligns with security-tier thinking).
+- **Social play** — squad scale, corps, trust, betrayal affordances, async cooperation.
+- **Encounters & enemy roles** — archetypes, what a fight teaches, variety without noise.
+- **Onboarding** — first session hook, clarity vs. mystery, how much systems the new player sees.
+- **Tone & narrative** — how lore shows up (quests, environment, UI), voice of the world.
 
 ## Related repo docs