Deadlock Playground — Full Walkthrough & Feature Tour
Comprehensive demonstration of real-time 3D texture painting, UV canvas editing, skeletal posing controls, and direct Source 2 VPK mod export.
v1.0.1 Available
The Ultimate 3D Studio & Texture Painter for Deadlock.
Deadlock Playground is an open-source desktop application engineered to inspect heroes, pose skeletons with full IK, paint custom skins in real-time 3D and 2D UV canvases, and compile mods directly into Source 2 VPK archives.
.NET 10 / C# 13
Godot 4.7.2 
ValveResourceFormat 
Direct VPK Ingestion
Extracts and decodes compiled Source 2 files (.vmdl_c, .vmat_c, .vtex_c, .vanim_c) on the fly directly from Deadlock's pak01_dir.vpk.
GPU 3D Texture Painting
Orthographic compute projection allows seamless painting over 3D seams, paired with a full 2D UV canvas dock, Magic Wand, and non-destructive layer blending.
Skeletal Posing & IK
Two-bone anatomical IK chains, FK gizmo manipulation, additive animation recoil scrubbing, and real-time Position-Based Dynamics cloth simulation.
Virtual Photography & 4K Export
Studio orbit turntable camera, custom backdrops, lighting controls, and high-resolution screenshot export up to 4K with optional transparent backgrounds.
Direct Mod Packaging
Automated collision-free pak##_dir.vpk compilation directly into game/citadel/addons/ for instant testing in game.
Core Open-Source Credits
• Engine: Godot Engine 4 (.NET / C#)
• Asset Pipeline: ValveResourceFormat (VRF)
• SVG Icons: at-icons (Voxybuns)
• GPU Painter: gpu-texture-painter (maantho)
• Gizmo3D: Gizmo3D (chrisizeful)
• Project Source: GitHub (Contribute)
Legal Disclaimer & Intellectual Property
Deadlock, Source 2, and Valve are trademarks of Valve Corporation. All character models, textures, animations, and game assets parsed by this software are property of Valve Corporation.
Unofficial fan creation not affiliated with or endorsed by Valve. No proprietary game files are bundled; assets are parsed locally from the user's personal Deadlock installation.
Official Video Walkthroughs
Feature Showcase Gallery
Vulkan Compute
Layer Stack
Gizmo3DSharp
Position-Based Dynamics
High-Res Viewport
Citadel Addons
Valve NPR Lighting
Source 2 VPCF
Source 2 VMDL
Application News
Raw API JSON Changelog & Release Notes
Version 1.0.1 — New Heroes & Topbar Menu
- Added support for 6 new update heroes from models/heroes_wip/: Violet, Baba, Deadman Danny, Nurse Harrow, Ratking, and Solomon.
- Highlighted the new WIP roster in the Hero Selection menu with dedicated badges.
- Added update topbar menu and changelog viewing modal.
Version 1.0.0 — Initial Public Release
- Native Valve pak01_dir.vpk archive reader and Source 2 binary parser (.vmdl_c, .vmat_c, .vtex_c, .vanim_c).
- Real-time 3D CameraBrush texture painting and 2D UV canvas dock with non-destructive multi-layer stack.
- Skeletal FK/IK posing suite with Gizmo3DSharp and procedural cloth simulation (Position-Based Dynamics).
- Bespoke shaders for Infernus, Lady Geist, Viscous, Vindicta, Lash, Wraith and more heroes.
- One-click direct mod export pipeline compiling custom skins into pak##_dir.vpk files directly in Citadel addons.
HTTP REST Endpoint CORS Enabled
Desktop App Integration
The Godot C# application consumes this endpoint on startup to dynamically synchronize ChangelogModalUI.cs and illuminate the news notification badge.
GET /api/changelog.json
JSON Response Preview
{
"latestVersion": "1.0.1",
"publishedAt": "2026-09-29T00:00:00Z",
"title": "Version 1.0.1 — New Heroes & Topbar Menu",
"markdown": "### Version 1.0.1 — New Heroes\n"
+ "\n"
+ "#### New Content:\n"
+ "* Added support for 6 new update heroes from `models/heroes_wip/`:\n"
+ " - Violet\n"
+ " - Baba\n"
+ " - Deadman Danny\n"
+ " - Nurse Harrow\n"
+ " - Ratking\n"
+ " - Solomon\n"
+ "* Highlighted the new WIP roster in the Hero Selection menu with dedicated badges.\n"
+ "* Added update topbar menu and changelog viewing modal.",
"history": [
{
"version": "1.0.1",
"date": "September 29, 2026",
"title": "Version 1.0.1 — New Heroes & Topbar Menu",
"badge": "Latest Release",
"badgeType": "gold",
"videoUrl": "https://www.youtube.com/watch?v=O7x7LGm_FOs",
"highlights": [
"Added support for 6 new update heroes from models/heroes_wip/: Violet, Baba, Deadman Danny, Nurse Harrow, Ratking, and Solomon.",
"Highlighted the new WIP roster in the Hero Selection menu with dedicated badges.",
"Added update topbar menu and changelog viewing modal."
]
},
{
"version": "1.0.0",
"date": "September 27, 2026",
"title": "Version 1.0.0 — Initial Public Release",
"badge": "Initial Release",
"badgeType": "sage",
"videoUrl": "https://www.youtube.com/watch?v=0GgRUHwB0ek",
"highlights": [
"Native Valve pak01_dir.vpk archive reader and Source 2 binary parser (.vmdl_c, .vmat_c, .vtex_c, .vanim_c).",
"Real-time 3D CameraBrush texture painting and 2D UV canvas dock with non-destructive multi-layer stack.",
"Skeletal FK/IK posing suite with Gizmo3DSharp and procedural cloth simulation (Position-Based Dynamics).",
"Bespoke shaders for Infernus, Lady Geist, Viscous, Vindicta, Lash, Wraith and more heroes.",
"One-click direct mod export pipeline compiling custom skins into pak##_dir.vpk files directly in Citadel addons."
]
}
],
"links": {
"website": "https://deadlock-playground.pages.dev",
"github": "https://github.com/juliancz-a/deadlock-playground",
"releases": "https://github.com/juliancz-a/deadlock-playground/releases",
"gamebanana": "https://gamebanana.com/tools/24316"
}
} Official Build Windows 64-bit v1.0.1
Deadlock Playground v1.0.1
Pre-compiled standalone Windows release. Includes full Source 2 ingestion, 3D texture painter, IK posing studio, high-res photography exporter, and auto-updater. No installation required—just unzip and run.
System Requirements
OS: Windows 10 / 11 (64-bit)
GPU: Direct3D 12 / Vulkan compatible GPU
Storage: ~400 MB (plus local Deadlock files)
Game: Valve's Deadlock installed on Steam
GameBanana Mod Page
Download community hero skins, textures, and share your Deadlock creations.
Discord Contact
Click to CopyDirect message for help and feedback: juliancz_
GitHub Open Source
Full C# 13 / Godot 4.7.2 source code, issue tracker, and feature roadmap.