Thunderbear Studios™
Thunderbear Studios Official Crest
THUNDERBEAR STUDIOS™

Independent Software & Applied AI Product Studio

Practical AI Developer Guardrails, Long-Term Gemini Memory & Real-Time Cloud Software.

Thunderbear Studios builds commercial developer infrastructure and real-time software powered by Google Cloud Run and the Google Gemini API. Our proprietary frameworks stop AI-generated security bugs before they ship, cut Gemini API costs by up to 4× through persistent memory caching, and bridge native C/C++ engines directly to the browser and cloud.

Launch Live Cloud Showcase (angband3d.com) → Google Cloud & Architecture Fact Sheet GitHub Organization
6 Live Services Running on Google Cloud Run (Multi-Region)
>85% Cache Hit Google Gemini Prompt Prefix Optimization
<50ms Checks Automated Pre-Save AI Security Guardrail
<3ms Recall SQLite + Graph Relationship Memory
4 C/C++ Engines Unified Under One 60 FPS 3D WebGL Bridge
40/40 Gates 29 Fast UI Suites + 11 Engine Smoke Tests

Proprietary Studio Technology

Three Core Frameworks Built to Solve Expensive Engineering Bottlenecks

Instead of building one-off prototypes, every product at Thunderbear Studios is built on three reusable, production-tested software frameworks developed in-house.

1. AI Code Security & Cost Control

Thunderbear Code Guard™ (Agentic Mastery v2.1)

The Problem: AI coding assistants frequently introduce security flaws, leak API keys in URLs, accidentally allocate memory inside 60 FPS or real-time audio loops, and waste token budgets scanning entire codebases.

What Our Framework Does: A zero-dependency pre-save guardrail and AST code indexer that inspects every AI tool action and file edit in <50ms before changes hit disk:

  • Blocks 12 Security Vulnerability Classes: Automatically stops URL key leaks (CWE-598), timing flaws (CWE-208), shell injection (CWE-78), unsafe deserialization (CWE-502), and PII leaks.
  • Enforces Real-Time Performance: Prevents heap allocations and locks inside 60 FPS render loops and real-time audio callbacks.
  • Cuts AI Context Cost: Indexes every class and function in <100ms so AI tools read 50-line surgical slices instead of dumping whole files.
Proven Result: Powered 42 consecutive feature releases across C99, C++, C#, and WebGL with 0 security leaks and 100% automated test pass rates across all 8 studio repositories.
2. Persistent AI Memory & Gemini Caching

Resonant Cloud Memory Engine™

The Problem: Standard AI applications forget context across sessions, overwrite historical facts when data changes, and suffer runaway API bills because dynamic prompts break Google Gemini's prefix cache.

What Our Framework Does: A cloud-native memory and prompt-structuring engine running on Google Cloud Run that gives Gemini applications permanent, auditable memory at a fraction of standard token costs:

  • Up to 4× Lower Gemini Token Spend: Compiles prompts into strict static-to-dynamic tiers so over 85% of input tokens hit Google Gemini's KV cache on multi-turn workflows.
  • Time-Tracked Relationship Graph: Combines SQLite-WAL, full-text search (FTS5), vector embeddings, and a <3ms PageRank graph traversal so evolving facts never erase historical records.
  • Serverless Cloud Storage Durability: Engineered for Google Cloud Run Gen2 with transactional Cloud Storage FUSE persistence.
Proven Result: Deployed and running live on Google Cloud Run (resonant-cloud and substrate-core services) powering our commercial AI workspace products.
3. Native C/C++ Modernization

Universal C/C++ to Cloud, 3D & Audio Bridge™

The Problem: Decades of battle-tested simulation engines, games, and pro-audio DSP algorithms are locked inside legacy desktop C/C++ codebases. Rewriting them for the web or cloud takes years and breaks subtle behavior.

What Our Framework Does: A lightweight (~200-line), zero-allocation C99 adapter and lock-free audio pipeline that connects unmodified C/C++ engines directly to modern cloud, web, and mobile frontends:

  • Zero Engine Rewrite Required: Streams live C/C++ state deltas at 60 Hz over stdio, WebSockets, or 2.79 MB Emscripten WebAssembly workers without altering a single rule or RNG calculation.
  • Dirty-State GPU Gating: Rebuilds Three.js WebGL and Godot 4 3D meshes only when state signatures change, sustaining locked 60 FPS on desktop and mobile.
  • Lock-Free Pro-Audio & DMX Pipeline: Single-producer single-consumer (SPSC) ring buffers with zero audio-thread memory allocation.
Proven Result: Runs 4 complete C/C++ engines simultaneously at angband3d.com and forms the core of our commercial VST and stage-lighting suite.

Live Google Cloud Run + Gemini API Proving Ground

Case Study: How We Built Angband 3D (angband3d.com)

To prove what our three frameworks can do under real-world load, we built and open-sourced (GPL-2.0) Angband 3D—taking four massive, 30-year-old C and C++ dungeon simulation engines designed for 1990s text terminals and running them live on Google Cloud Run in first-person 60 FPS 3D with a real-time Google Gemini Native Audio narrator.

● Live on Google Cloud Run (Multi-Region) Google Gemini Native Audio (30 Voices) 4 C/C++ Engines + 2.79 MB WASM Web • Windows • Linux • Android GPL-2.0 Open Source

How the Architecture Works End-to-End

Stage 1 4 Native C/C++ Engines Unmodified Angband 4.2.6, Sil-Q 1.5, FrogComposBand 7.1 & Hengband 3.0 binaries
Stage 2 ~200-Line C99 Bridge Zero-allocation JSON delta stream over Cloud Run WebSockets or in-browser WASM
Stage 3 Dual-Reality 3D + CRT 60 FPS Three.js 2K PBR & Godot 4 C# renderer + instant [Tab] 80×24 terminal
Stage 4 Gemini Living Chronicle Telemetry-grounded AI narration in 30 voice archetypes + illustrated hero sketches

Live WebGL, Dual-Reality 80×24 & Gemini Native Audio Gameplay Showcase

Captured directly from live 1920×1080 browser gameplay on the latest engine build. Click any showcase card to inspect at full 1080p resolution.

Town of Angband • Depth 0 🔍 Click to Enlarge (1080p) Normal Town of Angband at Depth 0 showing the open starry night sky and nebula, 3D store buildings and signs for General Store, Armoury, Weapon Smiths, Bookseller, and Alchemy Shop, 3D trees, Down Staircase, and Town creatures including Farmer Maggot and Fang

The Town of Angband: Celestial Sky, 3D Shops & Townspeople

Explore the surface town beneath an open starry sky and Milky Way nebula, complete with half-timbered and masonry 3D shop entrances ([1] General Store through [8] Home), 3D trees, and roaming townsfolk.

Expanded Radar • Click-to-Travel 🔍 Click to Enlarge (1080p) Expanded 360x360 Minimap Radar showing a golden dashed A* navigation route synchronized with 3D floor breadcrumb stepping stones and 8-way Street-View directional chevrons

Expanded Minimap Radar & 3D Click-to-Travel Pathfinding

Click any tile on the expandable Minimap Radar or 3D dungeon floor to engage A* pathfinding—rendering a synchronized golden route on the 2D radar and glowing 3D floor breadcrumbs that halt automatically on threat detection.

Dual-Reality [Tab] • 80×24 + 3D Sync 🔍 Click to Enlarge (1080p) Classic 80x24 Angband ASCII Terminal integrated directly over the 3D WebGL viewport, showing the golden 3D camera FOV vision cone and A* path on the ASCII grid alongside the Noun-to-Verb 3D Item Sheet

Full Classic 80×24 Terminal, 3D Vision Cone & Item Sheet Integration

Seamless bridge between classic ASCII and 3D: the 80×24 terminal projects your live 3D camera FOV vision cone and A* travel path directly onto the ASCII grid, paired with the non-modal Noun-to-Verb Item Sheet.

Live 60 FPS WebGL • Depth 15 🔍 Click to Enlarge (1080p) Angband 3D live WebGL combat at Depth 15 showing 3D Cave Troll, Azog King of the Uruk-Hai, first-person sword and shield viewmodel, and non-modal 3D Entity Inspection Popover

First-Person 3D Bestiary & Non-Modal Entity Inspection

Unmodified Angband 4.2.6 C-engine telemetry rendered at 60 FPS in Three.js with 2K PBR masonry, first-person weapon & shield viewmodels, 3D creature rigs, and a non-modal Popover API tactical inspector.

Gemini Native Audio • Depth 35 🔍 Click to Enlarge (1080p) Angband 3D Living Chronicle and Google Gemini Lorekeeper narrating live at Depth 35 against Lungorthin the Balrog and a Death Knight

The Living Chronicle & Fact-Checked Gemini Voice AI

Real-time 24 kHz PCM voice narration and tactical counsel grounded in live C-engine combat state via ChronicleGrounder, with in-character monster parley and prefix-cached Gemini prompts.

4 C/C++ Engines • Command Deck 🔍 Click to Enlarge (1080p) Angband 3D Main Menu 4-Realm Command Deck supporting Vanilla Angband 4.2.6, Sil-Q 1.5, FrogComposBand 7.1, and Hengband 3.0

Unified 4-Realm C/C++ Command Deck

Instant 1-click switching across Vanilla Angband 4.2.6, Sil-Q 1.5, FrogComposBand 7.1, and Hengband 3.0 (English/Japanese) with universal .SAV cross-platform save portability.

Six Engineering Breakthroughs Inside Angband 3D

1. Four Complete C/C++ Engines, Zero Rule Drift

Players can switch on the Main Menu between Vanilla Angband 4.2.6 (100 dungeon depths), Sil-Q 1.5.0 (tactical stealth), FrogComposBand 7.1.1 (50+ classes & overland wilderness), and Hengband 3.0.1 (complete with live English, Bilingual, and Japanese Kanji translation). Because the original C/C++ binaries run unmodified, 35 years of game balance and combat math remain 100% authentic.

2. Zero-Turn 360° Camera Look in a Turn-Based Grid

Traditional roguelikes advance time only when you act. Our bridge decouples spatial inspection from simulation turns: rotating your camera 360°, looking up and down, or inspecting monsters in 3D costs 0 game turns, while stepping, attacking, or casting sends an authoritative 1-turn command to the C engine.

3. Instant [Tab] Dual-Reality Terminal & Visual Cards

Pressing [Tab] switches in 0ms between first-person 3D exploration and the authentic 80×24 ASCII CRT terminal. On top of the terminal, our client-side screen parser (ScreenContext) automatically converts text prompts into 1-click visual spellbooks, inventory sheets, and bindable quick-action bars without modifying engine source code.

4. Fact-Checked Google Gemini Voice Narrator

The Living Chronicle uses Google Gemini and Gemini Native Audio to chronicle your hero's journey in 30 distinct voice personas. A deterministic grounding filter (ChronicleGrounder) verifies every monster, artifact, and HP value against live C-engine telemetry to prevent AI hallucinations, while proximity detection pre-generates boss audio before you open the door.

5. 58-Model 3D Bestiary, 8K Viewmodels & Studio Reverb

Combines 58 rigged 3D creature models, normal-mapped 2.5D illustrated sprites, procedural Catmull-Rom spline weapons, dynamic torchlight shaders, and a Web Audio convolution reverb engine modeling stone dungeon acoustics.

6. Universal .SAV Portability Across 4 Platforms

A single binary .SAV file moves seamlessly between Google Cloud Run Web, 100% Offline Browser WebAssembly, Windows & Linux Desktop (.NET 8 & Godot 4.7), and Android APK, with automatic browser IndexedDB to Cloud Run backup synchronization.

How It Was Built: Developed across 42 structured engineering workstreams using Thunderbear Code Guard™. Every commit is verified by 29 automated fast-tier UI/DOM/security test suites and 11 live headless C-engine smoke tests before deployment to Google Cloud Run.
Play Live on Google Cloud Run (angband3d.com) → Inspect GPL-2.0 Source & Releases on GitHub

Commercial SaaS & Software Roadmap

Commercial Products & Business Model

While Angband 3D serves as our free, non-commercial open-source technical showcase, Thunderbear Studios is commercializing our three core frameworks across B2B AI infrastructure, household productivity SaaS, and professional audio/lighting software.

Resonant Cloud & Code Guard SaaS

Cloud Run Alpha

Target Market: Software engineering teams and AI-native businesses building on Google Cloud and the Gemini API.
Product & Revenue Model: Subscription SaaS and enterprise SDK providing persistent, time-tracked Gemini memory (cutting token bills by up to 4×) paired with automated pre-commit/runtime security and performance guardrails.

Family Planner OS

In Development

Target Market: Consumer households & family coordination.
Product & Revenue Model: Privacy-first, multi-tenant household scheduling subscription app powered by Gemini voice-to-agenda ingestion, conflict-free calendar sync, and role-scoped family dashboards.

Thunderbear VST Suite & Studio Scribe

In Development

Target Market: Recording engineers, producers, and broadcast studios.
Product & Revenue Model: Commercial perpetual licenses and studio bundle for cross-platform C++/Rust VST3/CLAP/AU dynamics plugins and 32-bit float Broadcast Wave (BWF/RF64) multi-track session recording with automated -14 LUFS loudness normalization and AI session indexing.

StageLink DMX

In Development

Target Market: Live music venues, touring artists, and stage technicians.
Product & Revenue Model: Commercial software license for real-time spectral-flux audio analysis and deterministic 44 Hz DMX512-A, Art-Net 4, and sACN stage-lighting automation.

Inquiries & Reviewer Verification

Contact Thunderbear Studios

Evaluating Thunderbear Studios for cloud ecosystem partnerships or startup grant underwriting? Review our Google Cloud & Architecture Fact Sheet or reach our team directly below.

Founder & Partnerships

[email protected]
[email protected]

Engineering & Open Source

[email protected]
github.com/ThunderbearStudios

Security & Press

[email protected]
[email protected]

Live Showcase
↗ 1080p Raw
Full resolution Angband 3D gameplay capture