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.github/workflows
scripts
scripts
src
src
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.gitattributes
.gitignore
.gitignore
LICENSE
LICENSE
README.md
README.md

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Source+

Source+ is a custom tool for developing mods in Valve's Source Engine. Source+ takes the iconic Engine and converts it into a Game Engine more in-line with the Engines of today by giving it a custom editor & a multitude of additional tools to help make the development workflow much easier.

REQUIREMENTS

Windows (Alternative)

  • Microsoft Visual Studio 2026 with the following workflows & components:
    • .NET desktop development workflow
    • .NET 10.0 Runtime
    • NuGet package manager
    • NuGet targets and build tasks

BUILD INSTRUCTIONS

To build the project, open the scripts folder and click on the appropriate build script.

Inside the folder also lies a set of publish scripts for sharing/distributing without requiring any external dependencies.

Alternatively, you can go to the src folder in your operating system's terminal and run the dotnet build command.

Using Visual Studio (Windows only)

In Visual Studio, go to the top menu & open the Build menu. There, you can pick on whether to build the solution or just the current project.

Alternatively, you can use the Ctrl + Shift + B and Ctrl + B shortcuts to build the solution and current project respectively.

Debugging using Visual Studio

To debug using Visual Studio, go an click on the green arrow with the text Editor next to it or press F5.

LICENSE

The Source+ Editor is licensed under the MIT License, which you can read here.

The Source SDK and, by extension, the projects that you create are, by default, licensed under Valve's SOURCE 1 SDK License, which can be read here.

USEFUL RESOURCES

About

A custom tool for developing mods in Valve's Source Engine

Resources

Readme
MIT license
Activity

Stars

2 stars

Watchers

1 watching

Forks

0 forks
Report repository

Releases

Contributors

Languages

, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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.gitattributes
.gitignore
.gitignore
LICENSE
LICENSE
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README.md
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Commit ActivityCommit ActivityCommit ActivityCommit Activity
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Source+ Discord
WindowsLinux
Source+
Source+ is a custom tool for developing mods in Valve's Source Engine. Source+ takes the iconic Engine and converts it into a Game Engine more in-line with the Engines of today by giving it a custom editor & a multitude of additional tools to help make the development workflow much easier.
REQUIREMENTS
Windows (Alternative)
  • Microsoft Visual Studio 2026 with the following workflows & components:

    • .NET desktop development workflow
    • .NET 10.0 Runtime
    • NuGet package manager
    • NuGet targets and build tasks
BUILD INSTRUCTIONS
To build the project, open the scripts folder and click on the appropriate build script.
Inside the folder also lies a set of publish scripts for sharing/distributing without requiring any external dependencies.
Alternatively, you can go to the src folder in your operating system's terminal and run the dotnet build command.
Using Visual Studio (Windows only)
In Visual Studio, go to the top menu & open the Build menu. There, you can pick on whether to build the solution or just the current project.
Alternatively, you can use the Ctrl + Shift + B and Ctrl + B shortcuts to build the solution and current project respectively.
Debugging using Visual Studio
To debug using Visual Studio, go an click on the green arrow with the text Editor next to it or press F5.
LICENSE
The Source+ Editor is licensed under the MIT License, which you can read here.
The Source SDK and, by extension, the projects that you create are, by default, licensed under Valve's SOURCE 1 SDK License, which can be read here.
USEFUL RESOURCES
About
A custom tool for developing mods in Valve's Source Engine
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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120 Commits
Folders and files
NameName
Last commit message
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.github/workflows
.github/workflows
scripts
scripts
src
src
.gitattributes
.gitattributes
.gitignore
.gitignore
LICENSE
LICENSE
README.md
README.md
Repository files navigation
Commit ActivityCommit ActivityCommit ActivityCommit Activity
VersionRelease DateCommits since Latest Release
LicenseIssuesFile SizeLast Commit
Source+ Discord
WindowsLinux
Source+
Source+ is a custom tool for developing mods in Valve's Source Engine. Source+ takes the iconic Engine and converts it into a Game Engine more in-line with the Engines of today by giving it a custom editor & a multitude of additional tools to help make the development workflow much easier.
REQUIREMENTS
Windows (Alternative)
  • Microsoft Visual Studio 2026 with the following workflows & components:

    • .NET desktop development workflow
    • .NET 10.0 Runtime
    • NuGet package manager
    • NuGet targets and build tasks
BUILD INSTRUCTIONS
To build the project, open the scripts folder and click on the appropriate build script.
Inside the folder also lies a set of publish scripts for sharing/distributing without requiring any external dependencies.
Alternatively, you can go to the src folder in your operating system's terminal and run the dotnet build command.
Using Visual Studio (Windows only)
In Visual Studio, go to the top menu & open the Build menu. There, you can pick on whether to build the solution or just the current project.
Alternatively, you can use the Ctrl + Shift + B and Ctrl + B shortcuts to build the solution and current project respectively.
Debugging using Visual Studio
To debug using Visual Studio, go an click on the green arrow with the text Editor next to it or press F5.
LICENSE
The Source+ Editor is licensed under the MIT License, which you can read here.
The Source SDK and, by extension, the projects that you create are, by default, licensed under Valve's SOURCE 1 SDK License, which can be read here.
USEFUL RESOURCES
About
A custom tool for developing mods in Valve's Source Engine
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
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120 Commits
Folders and files
NameName
Last commit message
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.github/workflows
scripts
scripts
src
src
.gitattributes
.gitattributes
.gitignore
.gitignore
LICENSE
LICENSE
README.md
README.md
Repository files navigation
Commit ActivityCommit ActivityCommit ActivityCommit Activity
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Source+ Discord
WindowsLinux
Source+
Source+ is a custom tool for developing mods in Valve's Source Engine. Source+ takes the iconic Engine and converts it into a Game Engine more in-line with the Engines of today by giving it a custom editor & a multitude of additional tools to help make the development workflow much easier.
REQUIREMENTS
Windows (Alternative)
  • Microsoft Visual Studio 2026 with the following workflows & components:

    • .NET desktop development workflow
    • .NET 10.0 Runtime
    • NuGet package manager
    • NuGet targets and build tasks
BUILD INSTRUCTIONS
To build the project, open the scripts folder and click on the appropriate build script.
Inside the folder also lies a set of publish scripts for sharing/distributing without requiring any external dependencies.
Alternatively, you can go to the src folder in your operating system's terminal and run the dotnet build command.
Using Visual Studio (Windows only)
In Visual Studio, go to the top menu & open the Build menu. There, you can pick on whether to build the solution or just the current project.
Alternatively, you can use the Ctrl + Shift + B and Ctrl + B shortcuts to build the solution and current project respectively.
Debugging using Visual Studio
To debug using Visual Studio, go an click on the green arrow with the text Editor next to it or press F5.
LICENSE
The Source+ Editor is licensed under the MIT License, which you can read here.
The Source SDK and, by extension, the projects that you create are, by default, licensed under Valve's SOURCE 1 SDK License, which can be read here.
USEFUL RESOURCES
About
A custom tool for developing mods in Valve's Source Engine
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

Skip to content
BranchesTags
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120 Commits
Folders and files
NameName
Last commit message
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.github/workflows
.github/workflows
scripts
scripts
src
src
.gitattributes
.gitattributes
.gitignore
.gitignore
LICENSE
LICENSE
README.md
README.md
Repository files navigation
Commit ActivityCommit ActivityCommit ActivityCommit Activity
VersionRelease DateCommits since Latest Release
LicenseIssuesFile SizeLast Commit
Source+ Discord
WindowsLinux
Source+
Source+ is a custom tool for developing mods in Valve's Source Engine. Source+ takes the iconic Engine and converts it into a Game Engine more in-line with the Engines of today by giving it a custom editor & a multitude of additional tools to help make the development workflow much easier.
REQUIREMENTS
Windows (Alternative)
  • Microsoft Visual Studio 2026 with the following workflows & components:

    • .NET desktop development workflow
    • .NET 10.0 Runtime
    • NuGet package manager
    • NuGet targets and build tasks
BUILD INSTRUCTIONS
To build the project, open the scripts folder and click on the appropriate build script.
Inside the folder also lies a set of publish scripts for sharing/distributing without requiring any external dependencies.
Alternatively, you can go to the src folder in your operating system's terminal and run the dotnet build command.
Using Visual Studio (Windows only)
In Visual Studio, go to the top menu & open the Build menu. There, you can pick on whether to build the solution or just the current project.
Alternatively, you can use the Ctrl + Shift + B and Ctrl + B shortcuts to build the solution and current project respectively.
Debugging using Visual Studio
To debug using Visual Studio, go an click on the green arrow with the text Editor next to it or press F5.
LICENSE
The Source+ Editor is licensed under the MIT License, which you can read here.
The Source SDK and, by extension, the projects that you create are, by default, licensed under Valve's SOURCE 1 SDK License, which can be read here.
USEFUL RESOURCES
About
A custom tool for developing mods in Valve's Source Engine
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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BranchesTags
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120 Commits
Folders and files
NameName
Last commit message
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.github/workflows
scripts
scripts
src
src
.gitattributes
.gitattributes
.gitignore
.gitignore
LICENSE
LICENSE
README.md
README.md
Repository files navigation
Commit ActivityCommit ActivityCommit ActivityCommit Activity
VersionRelease DateCommits since Latest Release
LicenseIssuesFile SizeLast Commit
Source+ Discord
WindowsLinux
Source+
Source+ is a custom tool for developing mods in Valve's Source Engine. Source+ takes the iconic Engine and converts it into a Game Engine more in-line with the Engines of today by giving it a custom editor & a multitude of additional tools to help make the development workflow much easier.
REQUIREMENTS
Windows (Alternative)
  • Microsoft Visual Studio 2026 with the following workflows & components:

    • .NET desktop development workflow
    • .NET 10.0 Runtime
    • NuGet package manager
    • NuGet targets and build tasks
BUILD INSTRUCTIONS
To build the project, open the scripts folder and click on the appropriate build script.
Inside the folder also lies a set of publish scripts for sharing/distributing without requiring any external dependencies.
Alternatively, you can go to the src folder in your operating system's terminal and run the dotnet build command.
Using Visual Studio (Windows only)
In Visual Studio, go to the top menu & open the Build menu. There, you can pick on whether to build the solution or just the current project.
Alternatively, you can use the Ctrl + Shift + B and Ctrl + B shortcuts to build the solution and current project respectively.
Debugging using Visual Studio
To debug using Visual Studio, go an click on the green arrow with the text Editor next to it or press F5.
LICENSE
The Source+ Editor is licensed under the MIT License, which you can read here.
The Source SDK and, by extension, the projects that you create are, by default, licensed under Valve's SOURCE 1 SDK License, which can be read here.
USEFUL RESOURCES
About
A custom tool for developing mods in Valve's Source Engine
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

Skip to content
BranchesTags
Latest commit
History
120 Commits
Folders and files
NameName
Last commit message
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.github/workflows
.github/workflows
scripts
scripts
src
src
.gitattributes
.gitattributes
.gitignore
.gitignore
LICENSE
LICENSE
README.md
README.md
Repository files navigation
Commit ActivityCommit ActivityCommit ActivityCommit Activity
VersionRelease DateCommits since Latest Release
LicenseIssuesFile SizeLast Commit
Source+ Discord
WindowsLinux
Source+
Source+ is a custom tool for developing mods in Valve's Source Engine. Source+ takes the iconic Engine and converts it into a Game Engine more in-line with the Engines of today by giving it a custom editor & a multitude of additional tools to help make the development workflow much easier.
REQUIREMENTS
Windows (Alternative)
  • Microsoft Visual Studio 2026 with the following workflows & components:

    • .NET desktop development workflow
    • .NET 10.0 Runtime
    • NuGet package manager
    • NuGet targets and build tasks
BUILD INSTRUCTIONS
To build the project, open the scripts folder and click on the appropriate build script.
Inside the folder also lies a set of publish scripts for sharing/distributing without requiring any external dependencies.
Alternatively, you can go to the src folder in your operating system's terminal and run the dotnet build command.
Using Visual Studio (Windows only)
In Visual Studio, go to the top menu & open the Build menu. There, you can pick on whether to build the solution or just the current project.
Alternatively, you can use the Ctrl + Shift + B and Ctrl + B shortcuts to build the solution and current project respectively.
Debugging using Visual Studio
To debug using Visual Studio, go an click on the green arrow with the text Editor next to it or press F5.
LICENSE
The Source+ Editor is licensed under the MIT License, which you can read here.
The Source SDK and, by extension, the projects that you create are, by default, licensed under Valve's SOURCE 1 SDK License, which can be read here.
USEFUL RESOURCES
About
A custom tool for developing mods in Valve's Source Engine
Resources
Readme
MIT license
Activity
Stars
2 stars
Watchers
1 watching
Forks
0 forks
Report repository
Releases
Contributors
Languages

, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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LICENSE
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README.md
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Commit ActivityCommit ActivityCommit ActivityCommit Activity
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Source+
Source+ is a custom tool for developing mods in Valve's Source Engine. Source+ takes the iconic Engine and converts it into a Game Engine more in-line with the Engines of today by giving it a custom editor & a multitude of additional tools to help make the development workflow much easier.
REQUIREMENTS
Windows (Alternative)
  • Microsoft Visual Studio 2026 with the following workflows & components:

    • .NET desktop development workflow
    • .NET 10.0 Runtime
    • NuGet package manager
    • NuGet targets and build tasks
BUILD INSTRUCTIONS
To build the project, open the scripts folder and click on the appropriate build script.
Inside the folder also lies a set of publish scripts for sharing/distributing without requiring any external dependencies.
Alternatively, you can go to the src folder in your operating system's terminal and run the dotnet build command.
Using Visual Studio (Windows only)
In Visual Studio, go to the top menu & open the Build menu. There, you can pick on whether to build the solution or just the current project.
Alternatively, you can use the Ctrl + Shift + B and Ctrl + B shortcuts to build the solution and current project respectively.
Debugging using Visual Studio
To debug using Visual Studio, go an click on the green arrow with the text Editor next to it or press F5.
LICENSE
The Source+ Editor is licensed under the MIT License, which you can read here.
The Source SDK and, by extension, the projects that you create are, by default, licensed under Valve's SOURCE 1 SDK License, which can be read here.
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A custom tool for developing mods in Valve's Source Engine
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