melissa kate

Doppelgänger

An LA impersonation mystery played entirely through a phone

Posts

• Engine Improvements — Pre-Phase 4 2026-08-24

  Issues found during testing + features that need fleshing out before the plugin system.

• Progress 2026-08-24

  Living notes on where we are and what's likely next.

• Doppelganger Backend 2026-08-24

  @ -1,36 +0,0 @@

• Game Engine TypeScript Port — Implementation Plan 2026-08-24

  Context

• Doppelganger Engine 2026-08-24

  A narrative game engine with LLM character support — modern Twine for the AI era.

• Roadmap 2026-08-24

  Future features and directions, loosely ordered by impact and feasibility. Living document — reorder freely.

• Frontend Display Options 2026-08-24

  How far the engine's frontend (skin) layer can go — what's renderable today, what would need small engine extensions, and what skins/experiences become possible

• Project Conventions 2026-08-24

  CSS

Notes

• Dialogue Editor pattern — flat chain with per-card collapse Story-maker's Dialogue Editor renders the active conversation path as a flat stack of cards (not recursive nesting), with each card independently collapsible to a one-line transcript view.
• Discoveries and effects authoring model Discoveries are append-only narrative flags; variables are mutable state. Per-choice is canonical for both. Effects are never inline in content text. Choice gating uses a discovery picker.
• Engine state rewind via replay, not snapshot When rewinding to an earlier scene in the preview (or any time-travel feature), reconstruct state by replaying the engine from start with the prior choices — don't snapshot/restore engine state directly.
• Melissa profile User background, preferences, and technical comfort level
• Testing preferences User wants manual browser testing before committing, catch issues before they pile up