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This is the complete source code for Quake 2, version 3.19, buildable with
visual C++ 6.0. The linux version should be buildable, but we haven't
tested it for the release.
The code is all licensed under the terms of the GPL (gnu public license). You should read the entire license, but the gist of it is that you can do anything you want with the code, including sell your new version. The catch is that if you distribute new binary versions, you are required to make the entire source code available for free to everyone.
The primary intent of this release is for entertainment and educational purposes, but the GPL does allow commercial exploitation if you obey the full license. If you want to do something commercial and you just can't bear to have your source changes released, we could still negotiate a separate license agreement (for $$$), but I would encourage you to just live with the GPL.
All of the Q2 data files remain copyrighted and licensed under the original terms, so you cannot redistribute data from the original game, but if you do a true total conversion, you can create a standalone game based on this code.
Thanks to Robert Duffy for doing the grunt work of building this release.
John Carmack
Id Software

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, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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(function() {
function addCopyButtons() {
document.querySelectorAll('pre code').forEach(function(codeBlock) {
if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;
codeBlock.parentElement.setAttribute('data-copy-added', 'true');
var btn = document.createElement('button');
btn.textContent = 'Copy';
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;';
btn.onmouseover = function() { this.style.opacity = '1'; };
btn.onmouseout = function() { this.style.opacity = '0.7'; };
btn.onclick = function() {
navigator.clipboard.writeText(codeBlock.textContent).then(function() {
btn.textContent = 'Copied!';
setTimeout(function() { btn.textContent = 'Copy'; }, 1500);
});
};
codeBlock.parentElement.style.position = 'relative';
codeBlock.parentElement.appendChild(btn);
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var observer = new MutationObserver(addCopyButtons);
observer.observe(document.body, { childList: true, subtree: true });
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(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
GitHub - Findus79/Quake-2: Quake 2 GPL Source Release · GitHub
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This is the complete source code for Quake 2, version 3.19, buildable with
visual C++ 6.0. The linux version should be buildable, but we haven't
tested it for the release.
The code is all licensed under the terms of the GPL (gnu public license). You should read the entire license, but the gist of it is that you can do anything you want with the code, including sell your new version. The catch is that if you distribute new binary versions, you are required to make the entire source code available for free to everyone.
The primary intent of this release is for entertainment and educational purposes, but the GPL does allow commercial exploitation if you obey the full license. If you want to do something commercial and you just can't bear to have your source changes released, we could still negotiate a separate license agreement (for $$$), but I would encourage you to just live with the GPL.
All of the Q2 data files remain copyrighted and licensed under the original terms, so you cannot redistribute data from the original game, but if you do a true total conversion, you can create a standalone game based on this code.
Thanks to Robert Duffy for doing the grunt work of building this release.
John Carmack
Id Software

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Quake 2 GPL Source Release
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
.markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }
.markdown-body table th, .markdown-body table td { border-color: #30363d !important; }
.markdown-body img { background: #0d1117; }
.markdown-body blockquote { border-left-color: #8b949e; }
.markdown-body hr { border-color: #30363d; }
';
document.head.appendChild(style);
})();
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - Findus79/Quake-2: Quake 2 GPL Source Release · GitHub
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This is the complete source code for Quake 2, version 3.19, buildable with
visual C++ 6.0. The linux version should be buildable, but we haven't
tested it for the release.
The code is all licensed under the terms of the GPL (gnu public license). You should read the entire license, but the gist of it is that you can do anything you want with the code, including sell your new version. The catch is that if you distribute new binary versions, you are required to make the entire source code available for free to everyone.
The primary intent of this release is for entertainment and educational purposes, but the GPL does allow commercial exploitation if you obey the full license. If you want to do something commercial and you just can't bear to have your source changes released, we could still negotiate a separate license agreement (for $$$), but I would encourage you to just live with the GPL.
All of the Q2 data files remain copyrighted and licensed under the original terms, so you cannot redistribute data from the original game, but if you do a true total conversion, you can create a standalone game based on this code.
Thanks to Robert Duffy for doing the grunt work of building this release.
John Carmack
Id Software

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Quake 2 GPL Source Release
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
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var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
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terms = q.split(/\s+/).filter(function(t) { return t.length > 2; });
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var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
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var found = false;
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parts.forEach(function(part, i) {
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frag.appendChild(document.createTextNode(part));
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var span = document.createElement('span');
span.className = 'userscript-highlight';
span.textContent = part;
frag.appendChild(span);
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node.parentNode.replaceChild(frag, node);
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});
} else if (node.nodeType === 1 && node.childNodes) { // element
var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];
if (!skipTags.includes(node.tagName)) {
Array.from(node.childNodes).forEach(highlight);
}
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highlight(document.body);
// Re-highlight on dynamic content
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1 || node.nodeType === 3) highlight(node);
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - Findus79/Quake-2: Quake 2 GPL Source Release · GitHub
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This is the complete source code for Quake 2, version 3.19, buildable with
visual C++ 6.0. The linux version should be buildable, but we haven't
tested it for the release.
The code is all licensed under the terms of the GPL (gnu public license). You should read the entire license, but the gist of it is that you can do anything you want with the code, including sell your new version. The catch is that if you distribute new binary versions, you are required to make the entire source code available for free to everyone.
The primary intent of this release is for entertainment and educational purposes, but the GPL does allow commercial exploitation if you obey the full license. If you want to do something commercial and you just can't bear to have your source changes released, we could still negotiate a separate license agreement (for $$$), but I would encourage you to just live with the GPL.
All of the Q2 data files remain copyrighted and licensed under the original terms, so you cannot redistribute data from the original game, but if you do a true total conversion, you can create a standalone game based on this code.
Thanks to Robert Duffy for doing the grunt work of building this release.
John Carmack
Id Software

About
Quake 2 GPL Source Release
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1 watching
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
GitHub - Findus79/Quake-2: Quake 2 GPL Source Release · GitHub
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This is the complete source code for Quake 2, version 3.19, buildable with
visual C++ 6.0. The linux version should be buildable, but we haven't
tested it for the release.
The code is all licensed under the terms of the GPL (gnu public license). You should read the entire license, but the gist of it is that you can do anything you want with the code, including sell your new version. The catch is that if you distribute new binary versions, you are required to make the entire source code available for free to everyone.
The primary intent of this release is for entertainment and educational purposes, but the GPL does allow commercial exploitation if you obey the full license. If you want to do something commercial and you just can't bear to have your source changes released, we could still negotiate a separate license agreement (for $$$), but I would encourage you to just live with the GPL.
All of the Q2 data files remain copyrighted and licensed under the original terms, so you cannot redistribute data from the original game, but if you do a true total conversion, you can create a standalone game based on this code.
Thanks to Robert Duffy for doing the grunt work of building this release.
John Carmack
Id Software

About
Quake 2 GPL Source Release
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - Findus79/Quake-2: Quake 2 GPL Source Release · GitHub
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This is the complete source code for Quake 2, version 3.19, buildable with
visual C++ 6.0. The linux version should be buildable, but we haven't
tested it for the release.
The code is all licensed under the terms of the GPL (gnu public license). You should read the entire license, but the gist of it is that you can do anything you want with the code, including sell your new version. The catch is that if you distribute new binary versions, you are required to make the entire source code available for free to everyone.
The primary intent of this release is for entertainment and educational purposes, but the GPL does allow commercial exploitation if you obey the full license. If you want to do something commercial and you just can't bear to have your source changes released, we could still negotiate a separate license agreement (for $$$), but I would encourage you to just live with the GPL.
All of the Q2 data files remain copyrighted and licensed under the original terms, so you cannot redistribute data from the original game, but if you do a true total conversion, you can create a standalone game based on this code.
Thanks to Robert Duffy for doing the grunt work of building this release.
John Carmack
Id Software

About
Quake 2 GPL Source Release
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
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unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
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} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
GitHub - Findus79/Quake-2: Quake 2 GPL Source Release · GitHub
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This is the complete source code for Quake 2, version 3.19, buildable with
visual C++ 6.0. The linux version should be buildable, but we haven't
tested it for the release.
The code is all licensed under the terms of the GPL (gnu public license). You should read the entire license, but the gist of it is that you can do anything you want with the code, including sell your new version. The catch is that if you distribute new binary versions, you are required to make the entire source code available for free to everyone.
The primary intent of this release is for entertainment and educational purposes, but the GPL does allow commercial exploitation if you obey the full license. If you want to do something commercial and you just can't bear to have your source changes released, we could still negotiate a separate license agreement (for $$$), but I would encourage you to just live with the GPL.
All of the Q2 data files remain copyrighted and licensed under the original terms, so you cannot redistribute data from the original game, but if you do a true total conversion, you can create a standalone game based on this code.
Thanks to Robert Duffy for doing the grunt work of building this release.
John Carmack
Id Software

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Quake 2 GPL Source Release
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, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
GitHub - Findus79/Quake-2: Quake 2 GPL Source Release · GitHub
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This is the complete source code for Quake 2, version 3.19, buildable with
visual C++ 6.0. The linux version should be buildable, but we haven't
tested it for the release.
The code is all licensed under the terms of the GPL (gnu public license). You should read the entire license, but the gist of it is that you can do anything you want with the code, including sell your new version. The catch is that if you distribute new binary versions, you are required to make the entire source code available for free to everyone.
The primary intent of this release is for entertainment and educational purposes, but the GPL does allow commercial exploitation if you obey the full license. If you want to do something commercial and you just can't bear to have your source changes released, we could still negotiate a separate license agreement (for $$$), but I would encourage you to just live with the GPL.
All of the Q2 data files remain copyrighted and licensed under the original terms, so you cannot redistribute data from the original game, but if you do a true total conversion, you can create a standalone game based on this code.
Thanks to Robert Duffy for doing the grunt work of building this release.
John Carmack
Id Software

About
Quake 2 GPL Source Release
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