Continuing the idea I asked ChatGPT to help me out with a generic GDD doc to help me get started fleshing out the idea. This is by no means detailed enough but it’s an interesting starting place and saves a little bit of time. I dunno why it named the game StreamScape, I doubt that I’ll keep it but for now it’s good enough. Remember the next three years are not about prefect, but MVP games and tools that are good enough to publish and use.
🎵 PROJECT GDD — “StreamScape”
Type: Procedural Music + Visual Scene Generator
Engine: Godot 4.4.1 (C#)
Platform: Desktop (Windows / Mac / Linux)
Business model: One-time purchase
Primary users: Streamers, YouTubers, Devlog creators
🎯 Core Vision
A relaxing, fully offline desktop app that continuously generates copyright-free music and matching atmospheric scenes.
Users can choose a music style (Lo-Fi, Jazz, Industrial, etc.), a scene type (Room / Forest / Street), and the system automatically adjusts colors, lighting, props, and mood to match the generated track.
🧩 Feature Breakdown
| System | Purpose | Key Implementation Points |
|---|---|---|
| 🎶 Procedural Music Generator | Create infinite, copyright-safe loops | AudioStreamGenerator with sequencer logic and random note/pattern generator per style |
| 🎼 Music Style Templates | Store rhythm / scale / BPM / instrument layers | C# data objects (MusicTemplate.cs) serialized in JSON |
| 🪘 Sampler / Synth Layer | Play short WAV / OGG samples | AudioStreamPlayer array per instrument layer |
| 🌈 Mood-Color Engine | Map BPM & pitch → color palette | Script adjusts Environment, lights, post-process effects |
| 🏙️ Scene Generator | Spawn background scene matching music | PackedScene templates with random prop pools |
| 🎁 Calendar & Holiday System | Swap props for holidays / seasons | JSON holiday dictionary + date lookup |
| 🌦️ Weather Effects | Optional ambient particles / fog / rain | Particle2D/3D nodes enabled by weather flag |
| 🎨 Mood Lighting Sync | Beat-synced ambient light pulse | Light intensity tweens driven by BPM clock |
| 💾 Profile / Preset Save | Save favorite combos | JSON serialization in /user/settings/ |
| 📺 Stream Output Mode | UI-free display for OBS / recording | Toggle UI layer visibility & borderless fullscreen |
🎚️ Example Music Template Reference
| Style | BPM | Rhythm Feel | Instruments | Tone Palette |
|---|---|---|---|---|
| 1920s Jazz | 120 | Swing (1-and-a-2) | Upright bass, brushed drums, trumpet, piano | Bright brass, warm browns |
| Lo-Fi Chill | 70 | Lazy off-beat | Electric piano, soft drums, vinyl crackle | Muted pinks / creams |
| Industrial | 140 | Rigid 4/4 | Metal clang, distorted synth | Gray / neon cyan |
| Hip-Hop | 90 | Syncopated | 808 bass, snare, piano loop | Gold / purple |
| Ambient | 60 | Freeform | Pad, sub bass | Cool blues / white |
🖼️ Scene Templates
| Scene | Description | Holiday / Weather Variants |
|---|---|---|
| ☕ Street Café | City street + tables + lights | Pumpkins / Snow / Banners |
| 🌲 Forest Clearing | Trees + campfire + fog | Fireflies / Rain / Snow |
| 🏡 Indoor Room | Desk + window + lamp | Decor / Christmas lights / Valentine hearts |
🗂️ SUGGESTED GODOT C# FOLDER LAYOUT
res://
│
├── Assets/
│ ├── Audio/
│ │ ├── Drums/
│ │ ├── Bass/
│ │ ├── Melodies/
│ │ └── FX/
│ ├── Sprites/
│ ├── Models/
│ └── Fonts/
│
├── Scenes/
│ ├── MainMenu.tscn
│ ├── StreamView.tscn
│ ├── SceneTemplates/
│ │ ├── Cafe.tscn
│ │ ├── Forest.tscn
│ │ └── Room.tscn
│ └── UI/
│ ├── StyleSelector.tscn
│ ├── SceneSelector.tscn
│ └── SettingsPanel.tscn
│
├── Scripts/
│ ├── Core/
│ │ ├── MusicManager.cs
│ │ ├── MusicTemplate.cs
│ │ ├── Sequencer.cs
│ │ ├── ColorMoodManager.cs
│ │ ├── SceneManager.cs
│ │ ├── HolidaySystem.cs
│ │ ├── WeatherSystem.cs
│ │ └── SaveLoadManager.cs
│ ├── UI/
│ │ ├── StyleSelectorUI.cs
│ │ ├── SceneSelectorUI.cs
│ │ └── StreamToggleUI.cs
│ └── Utils/
│ ├── BeatClock.cs
│ └── AudioHelpers.cs
│
├── Data/
│ ├── MusicTemplates.json
│ ├── HolidayEvents.json
│ └── ColorPalettes.json
│
└── ProjectSettings/
└── ExportPresets.cfg
