custompaint
Guitar Body Skins
Full-body custom paint finishes, illustrations, and liveries. Loaded in the Paint Station under the Skin Workflow.
Community Workshop
Guitar Workshop Modding Hub
Craft custom body skins, fretboard inlays, wood tops, and patterns. Share your creations on the Steam Workshop with our built-in mod publisher.
Quick Start Workflow
How Modding Works
A seamless 3-step pipeline built directly into the game—no Unreal Engine editor or external tools required
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01
1. Create Local Folder
Step 1Press Win + R, open %LocalAppData%\Guitar_workshop\Saved\Mods\LocalMods\ and duplicate the ready-to-use ModTemplate folder.
%LocalAppData%\Guitar_workshop\Saved\Mods\LocalMods\ -
02
2. Craft & Configure
Step 2Add your texture.png (2K/4K artwork or mask), preview.png thumbnail (< 1 MB), and configure mod_info.json.
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03
3. Publish In-Game
Step 3Launch the game, open Main Menu > Mods, preview your creation and click 'Publish to Steam Workshop' with one click.
Supported Categories
5 Mod Types You Can Create
Native support for custom finishes, fine lutherie woodwork, and personal workshop decorations
inlay
Fretboard Inlays
Custom texture design for fretboard markers and fret inlays, applied directly in the Paint Station.
pattern
Custom Pattern Texture
Custom seamless tileable black & white patterns.
wood
Custom Wood Top Texture
Black & white texture projected onto the front face (top) of the guitar.
flag
Workshop Wall Banners
Hang custom flags, brand emblems, and band artwork on your workshop walls to personalize your luthier space.
Official UV Templates
Texture Templates
Download the official layered PSD packages to start designing your custom guitar finishes
BODY TEMPLATE
4096 × 4096
Dusthorn Single Cut
Official template for the Dusthorn Single Cut body.
BODY TEMPLATE
4096 × 4096
Nashcaster Classic
Official template for the Nashcaster Classic body.
BODY TEMPLATE
2048 × 2048
Vyperion
Official template for the Vyperion body.
BODY TEMPLATE
4096 × 4096
Spectrum Bass
Official template for the Spectrum Bass body.
Workshop & Accessories
Other Template
Official templates for fretboard inlays and workshop wall banners
INLAY TEMPLATE
2048 × 2048
Neck Inlays
Official template for custom fretboard markers and neck inlays.
FLAG TEMPLATE
2048 × 2048
Workshop Flag
Official template for workshop wall banners and flags.
Technical Architecture
The 3 Essential Mod Files
Every mod is self-contained within its own subfolder inside LocalMods\
1. mod_info.json (Configuration Schema)
{
"ModName": "Epic Vyperion Skin",
"ShortName": "Epic Vyperion",
"Type": "custompaint",
"Author": "LuthierMaster",
"Description": "Epic skin for the Vyperion guitar model.",
"compatible_model": "Vyperion",
"PublishedFileId": "0"
}| Key | Type | Description |
|---|---|---|
ModName |
string | Public title displayed on Steam Workshop. |
ShortName |
string | Compact name in in-game dropdown menus. |
Type |
string | custompaint, inlay, pattern, wood,
flag
|
compatible_model |
string | Target guitar model for body skins. |
PublishedFileId |
string | Leave as "0"; game auto-updates upon publish. |
2. texture.png (In-Game Texture)
Square power-of-two texture (1024×1024 up to 4096×4096). Full-color RGB for skins & flags; Black & White mask for inlays (custom fret marker design) and patterns (primary and secondary colors in the Paint Station).
White (#FFFFFF):
Custom fret marker design / Pattern Primary Color
Black (#000000):
Transparent background (fretboard wood) / Pattern Secondary
Color
3. preview.png (Steam Thumbnail)
Square thumbnail preview (e.g. 512×512). MUST be strictly under 1 MB, otherwise Steamworks UGC will automatically reject the upload.
Strict Limit: < 1 MB (1024 KB) • 1:1 Aspect Ratio
Troubleshooting & FAQ
Modding Frequently Asked Questions
Common questions regarding file formats, Steam Workshop validation, and updates
Do I need Unreal Engine 5 installed to create mods?
No! You only need any standard image editing software (Photoshop, GIMP, Krita, Paint.NET). The game imports PNG and JPG files dynamically at runtime without needing external mod tools or engine installs.
Why was my Steam Workshop upload rejected by the game?
The most common reason is preview.png file size. Steamworks UGC strictly requires the preview thumbnail to be under 1 megabyte (1024 KB). Also ensure the image is square.
How do I update a mod I already published?
Keep your local folder intact! When published, Guitar Workshop automatically saves your unique Steam Workshop item ID into mod_info.json. Opening the in-game Mods menu will show an 'Update Workshop Item' button that updates your page without creating duplicates.
Can I combine custom body skins with sunbursts or contour lines?
Yes! The Spraying Workbench's Skin Workflow allows toggling additional layer masks (contour lines, perimeter bursts, tonewood tints) right on top of your custom skin texture.
How do subscribed Workshop mods work in the game?
Simply hit 'Subscribe' on any mod on the Steam Workshop. Steam downloads the files, and upon launching Guitar Workshop, they are instantly recognized and available in the corresponding workbench drop-downs.