FableForge

Live in production

Make a character and walk around a living village, or start writing a branching story with art made for it.

FableForge showing its home page with a painted village and buttons to walk in or start a story

Current status

Live browser RPG and visual novel studio running at fableforge.to with multi-angle character art, town exploration, and no account needed to play.

Overview

Web-native story studio and playable RPG platform at fableforge.to where creators draft branching visual novels, generate consistent multi-angle character portraits, scene backdrops, and battlemaps, and publish games that play instantly in any browser.

Why it was built

Most indie writers have great story ideas but get blocked having to illustrate hundreds of character expressions and scenes or package bulky desktop downloads before anyone can play their game.

Why it helps

Combines branching narrative design, reference-locked character and environment artwork generation, and instant browser playback in one place—while powering The Village RPG with live town exploration, social trust dialogue, and turn-based tactical combat.

What you can do

Zero-install browser player for branching visual novels with cloud saves and relationship memory
Playable Village RPG featuring town exploration, social trust dialogue, quests, and turn-based tactical combat
Reference-locked character turnaround sheets, portrait expressions, scene backdrops, and top-down battlemaps
Full project export to standard desktop visual novel formats that creators completely own

FableForge • Core Technology & Feature Architecture

FFScript v1 Compiler, 8-Surface Visual Studio & The Village RPG Engine

Author branching visual novels in the component-based Puck scene editor or import existing Ren'Py scripts (@renpy/ast), synthesize character sheets and battlemaps across 8 visual surfaces, and explore The Village RPG with turn-based @fableforge/combat.

FFScript v1 + @renpy/ast

Ren'Py AST Importer & PixiJS + WebAudio Stage

Parses .rpy visual novel scripts into a typed AST, compiles branching dialogue, state flags, and camera choreography into FFScript v1, and renders layered sprites, weather shaders, and multi-track WebAudio directly in the browser.

8-Surface Visual Router

Multi-Reference Character Sheets & 5-Axis Vision Critic

Routes character turnaround sheets (google/gemini-nano-banana-2.1 & gemini-3.1-flash-image), 3:4 expression busts, 16:9 widescreen scene paintings (flux-2-pro), and top-down battlemaps through a 5-axis Gemini Vision critic with automatic canonical anchor promotion (>= 0.95).

@fableforge/combat + RPG

The Village Overworld, NPC Schedules & Turn-Based Combat

Walk around a living painted town with scheduled NPCs, gossip propagation, and dynamic market trade, then transition into deterministic turn-based tactical encounters powered by @fableforge/combat.

Convex PWA + Dual Gateway

Cloud Saves, Offline PWA & Stripe Primary / NMI Fallback

Real-time Convex cloud saves and offline-capable PWA storage paired with policy-routed Stripe Primary checkout, automatic NMI fallback for Adult/Tier-2 (18+) catalogs, Daily Gacha Streak Ink rewards, and Spark Bank rollover.

Before & After Engineering AuditVisual Novel Studio & Playable RPG8 specialized visual surfaces · >= 0.95 Canonical Anchor lock

Anchor-promoted 8-surface character consistency & FFScript web player vs. drifting prompts

Comparison focus

Before: Unconditioned diffusion prompts (face/outfit drift on every sprite)

Generating visual novel sprites with standalone text prompts produces a different face, eye color, and jacket on every emotion bust, and desktop builds require bulky downloads.

// Unconditioned per-scene prompt (drifts every call)
generateImage("female detective smiling in rain");
generateImage("female detective angry in office"); // different face & coat

After: >= 0.95 Canonical Anchor promotion (up to 14 refs) + FFScript v1 web stage

FableForge grades turnaround sheets with a 5-axis Gemini Vision critic, promotes >= 0.95 assets to Canonical Reference Anchors (up to 14 refs), and runs branching FFScript v1 + @fableforge/combat live in the browser.

// FableForge 8-Surface Router + Canonical Anchor Lock
const route = resolveVisualRoute({ surface: "character_reference_sheet" });
// 5-axis Vision Critic = 0.96 -> promoted to Canonical Anchor (14 refs)
// Locks identity across vn_portrait_3x4, environment_16x9 & battlemaps

CV & VLM rubric shift: 0.737 → 0.959 (+0.222 · Sharpness +60% · PSNR 45.07 dB)

Grounding gate: Negation parity & evidence verified

Interactive walkthrough

Step through how FableForge works without creating an account or installing local dependencies.

Entry & problem context

Maturity: Live in production

Most indie writers have great story ideas but get blocked having to illustrate hundreds of character expressions and scenes or package bulky desktop downloads before anyone can play their game.

Shared platform architecture sandbox

Test the live cross-language single source of truth shared across TypeScript, Python, and Rust.

Normalize legacy or rolling model slug

Resolved OpenRouter wire slug: ~anthropic/claude-sonnet-latest

Contextual task intent routerPrefer zero-cost floor (`openrouter/free` cap enforced)

Primary wire model: google/gemini-3.1-flash-image (Gemini 3.1 Flash Image)

Capped fallback chain: google/gemini-3.1-flash-image → google/gemini-nano-banana-2.1 → openrouter/free

Pareto composite score: 0.8499 (effective cost $0.00102/1k)

Universal 9-Surface Visual & Image Capability Router (`resolveVisualRoute`)

Routes character turnaround sheets, 3:4 VN busts, 16:9 scenes, top-down battlemaps, 1:1 tokens, typography plates, semiotic brand favicons, WebGPU background removal, and Tier-2 local ComfyUI models.

Prefer OpenRouter image gateway

Primary model: google/gemini-nano-banana-2.1 via openrouter

Aspect ratio: 1:1 · Max ref images: 4 · Fallback: google/gemini-3-pro-image → black-forest-labs/flux-2-pro → comfy_local/illustrious-xl

Routes multi-reference character turnaround sheets through Gemini Nano Banana 2.1 on OpenRouter (`modalities: ['image', 'text']`) with PuLID/FLUX fallback.

Anchor promotion (`score >= 0.95`): Promoted to canonical anchor (overall 0.958)

Speculative YOLO anatomy pass: Standby · Vector guard: 1024d verified

DeepSeek 18:00 UTC window: Off-peak active (50% V3 / 25% R1 cost)

Model-aware prompt compiler & five-axis vision rubric (30 registered models)

Compiled prompt (natural_language):

Noir detective standing under neon rain in a cyberpunk alley, cinematic volumetric lighting Character anchors: trenchcoat; amber cybernetic eye. Composition & pose guidance: 16:9 widescreen; cinematic keyframes.

Gemini Vision five-axis rubric weighted score: 0.9 (Passes quality gate)

Semiotic Brand Identity & Federated SoC Governance

Peircean Brand Mark, Multi-Size Squint Test & 3-Tier SoC Boundary

SoC tier: internal_commercial16px rubric: 96.7% (PASS)

16px · 32px · 48px squint test

Motif: anvil_quill

Iconic sign: Blacksmith forge anvil crowned by an illuminated storytelling quill nib

Indexical cue: Multi-model character sheet synthesis and branching visual-novel authoring

Symbolic archetype: Magenta-rose mythic craft and interactive fiction studio crest

SoC Boundary & Epistemic Retrieval Guardrails

Visibility & ceiling: private_commercial (max tier: internal_commercial)

Boundary policy: Commercial AI interactive fiction studio — full commercial billing and 9-surface visual routing.

4-gram shingle novelty: 100.0% (non-redundant >15%) · Retired symbol trap: Clear (0 retired symbols)

GitHub Profile & Source Activity

Engineering Velocity & Open-Source Hygiene

Synced from @brbrainerd and @vox-foundation via the GitHub GraphQL API (GET /api/github/stats).

GitHub Profile vox-foundation/vox

Annual GitHub activity

13,842+

3,229 public · 10,136 private revisions

Curated portfolio history

19,523+

Revisions across 32 curated projects

Pull requests & reviews

463 PRs

Merged across 70 first-party codebases

FableForge historyTypeScript

1,293 revisions

11,171 tracked source files · Updated 2026-10-13

Language distribution across curated projectsWeighted by revision history & source volume

TypeScript38.9% (12 projects)

Rust36.9% (1 project)

Python11.3% (8 projects)

JavaScript4.7% (2 projects)

Lua4.1% (1 project)

Public open-source codebases on GitHub

vox-foundation/voxRust · 7,200 rev

Single-file full-stack programming language and Rust compiler that generates database schemas, server routes, and typed clients from one declaration.

#programming-language#rust#compiler#full-stack#lsp

brbrainerd/govSimTypeScript · 435 rev

Interactive political economy simulator with ECS civic rights, institutional modeling, policy levers, and multi-regime scenarios.

#simulation#political-economy#typescript#ecs#strategy-game

brbrainerd/neurogeckoHTML · 6 rev

Interactive 3D macaque brain atlas and stereo surgical view planner rendered in browser WebGL.

#neuroscience#webgl#threejs#brain-atlas#3d-visualization

brbrainerd/brFrameTypeScript · 23 rev

Single-binary Rust and React kiosk shell for Raspberry Pi digital photo frames with remote mobile upload.

#rust#raspberry-pi#kiosk#embedded#react

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