diff --git a/public/ads.txt b/public/ads.txt
new file mode 100644
index 0000000..3f282eb
--- /dev/null
+++ b/public/ads.txt
@@ -0,0 +1 @@
+google.com, ## YOUR pub-XXXXXXXXX, DIRECT, XXXXXXX
diff --git a/public/adsense.json b/public/adsense.json
new file mode 100644
index 0000000..8dcba1b
--- /dev/null
+++ b/public/adsense.json
@@ -0,0 +1,5 @@
+{
+    "slot": "### SLOT ID FROM GOOGLE - data-ad-slot ###",
+    "format": "auto",
+    "fullWidthResponsive": true
+}
diff --git a/public/ui-config.example b/public/ui-config.example
index d33db29..946e5e0 100644
--- a/public/ui-config.example
+++ b/public/ui-config.example
@@ -27,6 +27,7 @@
     "guides.enabled": true,
     "toolbar.hide.quests": true,
     "catalog.style.new": true,
+	"show.google.ads": false,
 	"loginview": {
         "images": {
             "background": "${asset.url}/c_images/reception/stretch_blue.png",
diff --git a/src/components/MainView.tsx b/src/components/MainView.tsx
index f757aa7..5309364 100644
--- a/src/components/MainView.tsx
+++ b/src/components/MainView.tsx
@@ -24,6 +24,7 @@ import { NavigatorView } from './navigator/NavigatorView';
 import { NitrobubbleHiddenView } from './nitrobubblehidden/NitrobubbleHiddenView';
 import { NitropediaView } from './nitropedia/NitropediaView';
 import { ExternalPluginLoader } from './plugins/ExternalPluginLoader';
+import { GoogleAdsView } from './ads/GoogleAdsView';
 import { RightSideView } from './right-side/RightSideView';
 import { RoomView } from './room/RoomView';
 import { ToolbarView } from './toolbar/ToolbarView';
@@ -97,6 +98,7 @@ export const MainView: FC<{}> = props =>
                     </motion.div> }
             </AnimatePresence>
             <ToolbarView isInRoom={ !landingViewVisible } />
+            <GoogleAdsView />
             <ModToolsView />
             <WiredCreatorToolsView />
             <RoomView />
diff --git a/src/components/ads/GoogleAdsView.tsx b/src/components/ads/GoogleAdsView.tsx
new file mode 100644
index 0000000..b31574e
--- /dev/null
+++ b/src/components/ads/GoogleAdsView.tsx
@@ -0,0 +1,164 @@
+import { FC, useEffect, useRef, useState } from 'react';
+import { GetConfigurationValue } from '../../api';
+import { NitroCardContentView, NitroCardHeaderView, NitroCardView } from '../../common';
+
+interface AdsenseConfig {
+    slot: string;
+    format?: string;
+    fullWidthResponsive?: boolean;
+}
+
+const ADSENSE_SCRIPT_ID = 'google-adsense-script';
+
+const parsePublisherIdFromAdsTxt = (text: string): string | null => {
+    for (const rawLine of text.split(/\r?\n/)) {
+        const line = rawLine.split('#')[0].trim();
+        if (!line) continue;
+        const parts = line.split(',').map(part => part.trim());
+        if (parts.length < 2) continue;
+        if (parts[0].toLowerCase() !== 'google.com') continue;
+        const pub = parts[1];
+        if (/^pub-\d+$/.test(pub)) return pub;
+    }
+    return null;
+};
+
+const ensureAdsenseScript = (publisherId: string): void => {
+    if (typeof document === 'undefined') return;
+    if (document.getElementById(ADSENSE_SCRIPT_ID)) return;
+
+    const script = document.createElement('script');
+    script.id = ADSENSE_SCRIPT_ID;
+    script.async = true;
+    script.crossOrigin = 'anonymous';
+    script.src = `https://pagead2.googlesyndication.com/pagead/js/adsbygoogle.js?client=ca-${ publisherId }`;
+    document.head.appendChild(script);
+};
+
+export const GoogleAdsView: FC<{}> = () => {
+    const adsEnabled = GetConfigurationValue<boolean>('show.google.ads', false);
+    const [ isOpen, setIsOpen ] = useState(false);
+    const [ publisherId, setPublisherId ] = useState<string | null>(null);
+    const [ config, setConfig ] = useState<AdsenseConfig | null>(null);
+    const [ loadError, setLoadError ] = useState<string | null>(null);
+    const insRef = useRef<HTMLModElement>(null);
+    const pushedRef = useRef(false);
+    const autoOpenedRef = useRef(false);
+
+    useEffect(() => {
+        if (!adsEnabled) return;
+        const handler = () => setIsOpen(prev => !prev);
+        window.addEventListener('ads:toggle', handler);
+        return () => window.removeEventListener('ads:toggle', handler);
+    }, [ adsEnabled ]);
+
+    // Auto-open once on initial mount (the login / landing stage).
+    // Subsequent toggles are driven by the "ads:toggle" window event
+    // (e.g. the Show Ad button in NitroSystemAlertView).
+    useEffect(() => {
+        if (!adsEnabled) return;
+        if (autoOpenedRef.current) return;
+        autoOpenedRef.current = true;
+        const t = setTimeout(() => setIsOpen(true), 500);
+        return () => clearTimeout(t);
+    }, [ adsEnabled ]);
+
+    useEffect(() => {
+        let cancelled = false;
+
+        (async () => {
+            try {
+                const [ adsTxtRes, configRes ] = await Promise.all([
+                    fetch('/ads.txt', { cache: 'no-cache' }),
+                    fetch('/adsense.json', { cache: 'no-cache' })
+                ]);
+
+                if (!adsTxtRes.ok) throw new Error(`ads.txt ${ adsTxtRes.status }`);
+
+                const adsTxt = await adsTxtRes.text();
+                const pubId = parsePublisherIdFromAdsTxt(adsTxt);
+
+                if (!pubId) throw new Error('No google.com publisher id in ads.txt');
+
+                let cfg: AdsenseConfig = { slot: '', format: 'auto', fullWidthResponsive: true };
+                if (configRes.ok) cfg = { ...cfg, ...(await configRes.json()) };
+
+                if (cancelled) return;
+                setPublisherId(pubId);
+                setConfig(cfg);
+            } catch (err) {
+                if (!cancelled) setLoadError((err as Error).message);
+            }
+        })();
+
+        return () => { cancelled = true; };
+    }, []);
+
+    useEffect(() => {
+        if (!isOpen || !publisherId || !config) return;
+        ensureAdsenseScript(publisherId);
+    }, [ isOpen, publisherId, config ]);
+
+    useEffect(() => {
+        if (!isOpen) {
+            pushedRef.current = false;
+            return;
+        }
+        if (!insRef.current || pushedRef.current) return;
+        if (!publisherId || !config?.slot) return;
+
+        const tryPush = () => {
+            try {
+                // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                const w = window as any;
+                w.adsbygoogle = w.adsbygoogle || [];
+                w.adsbygoogle.push({});
+                pushedRef.current = true;
+            } catch {
+                // AdSense script may not be ready yet; retry once
+                setTimeout(() => {
+                    try {
+                        // eslint-disable-next-line @typescript-eslint/no-explicit-any
+                        const w = window as any;
+                        w.adsbygoogle = w.adsbygoogle || [];
+                        w.adsbygoogle.push({});
+                        pushedRef.current = true;
+                    } catch { /* give up */ }
+                }, 500);
+            }
+        };
+
+        const t = setTimeout(tryPush, 50);
+        return () => clearTimeout(t);
+    }, [ isOpen, publisherId, config ]);
+
+    if (!adsEnabled) return null;
+    if (!isOpen) return null;
+
+    return (
+        <NitroCardView className="nitro-google-ads" uniqueKey="google-ads" theme="primary">
+            <NitroCardHeaderView headerText="Sponsored" onCloseClick={ () => setIsOpen(false) } />
+            <NitroCardContentView>
+                <div className="flex items-center justify-center w-[300px] h-[250px] bg-white">
+                    { loadError &&
+                        <div className="text-xs text-red-600 text-center px-2">Ads unavailable: { loadError }</div> }
+                    { !loadError && (!publisherId || !config) &&
+                        <div className="text-xs text-gray-500">Loading…</div> }
+                    { !loadError && publisherId && config?.slot &&
+                        <ins
+                            ref={ insRef }
+                            key={ `${ publisherId }-${ config.slot }` }
+                            className="adsbygoogle"
+                            style={ { display: 'block', width: '100%', height: '100%' } }
+                            data-ad-client={ `ca-${ publisherId }` }
+                            data-ad-slot={ config.slot }
+                            data-ad-format={ config.format ?? 'auto' }
+                            data-full-width-responsive={ (config.fullWidthResponsive ?? true) ? 'true' : 'false' }
+                        /> }
+                    { !loadError && publisherId && config && !config.slot &&
+                        <div className="text-xs text-gray-500 text-center px-2">Ad slot not configured in adsense.json</div> }
+                </div>
+            </NitroCardContentView>
+        </NitroCardView>
+    );
+};
diff --git a/src/components/notification-center/views/alert-layouts/NitroSystemAlertView.tsx b/src/components/notification-center/views/alert-layouts/NitroSystemAlertView.tsx
index 58db879..dd47863 100644
--- a/src/components/notification-center/views/alert-layouts/NitroSystemAlertView.tsx
+++ b/src/components/notification-center/views/alert-layouts/NitroSystemAlertView.tsx
@@ -1,5 +1,5 @@
 import { FC } from 'react';
-import { GetRendererVersion, GetUIVersion, NotificationAlertItem } from '../../../../api';
+import { GetConfigurationValue, GetRendererVersion, GetUIVersion, NotificationAlertItem } from '../../../../api';
 import { Button, Column, Grid, LayoutNotificationAlertView, LayoutNotificationAlertViewProps, Text } from '../../../../common';
 
 interface NotificationDefaultAlertViewProps extends LayoutNotificationAlertViewProps
@@ -9,10 +9,11 @@ interface NotificationDefaultAlertViewProps extends LayoutNotificationAlertViewP
 
 export const NitroSystemAlertView: FC<NotificationDefaultAlertViewProps> = props =>
 {
-    const { title = 'Nitro', onClose = null, ...rest } = props;
+    const { title = 'Nitro', onClose = null, classNames = [], ...rest } = props;
+    const adsEnabled = GetConfigurationValue<boolean>('show.google.ads', false);
 
     return (
-        <LayoutNotificationAlertView title={ title } onClose={ onClose } { ...rest }>
+        <LayoutNotificationAlertView title={ title } onClose={ onClose } classNames={ [ 'nitro-alert-system', ...classNames ] } { ...rest }>
             <Grid>
                 <Column size={ 12 }>
                     <Column alignItems="center" gap={ 0 }>
@@ -23,6 +24,8 @@ export const NitroSystemAlertView: FC<NotificationDefaultAlertViewProps> = props
                         <Text><b>Renderer:</b> v{ GetRendererVersion() }</Text>
                         <Column fullWidth gap={ 1 }>
                             <Button fullWidth variant="success" onClick={ event => window.open('https://discord.nitrodev.co') }>Discord</Button>
+                            { adsEnabled &&
+                                <Button fullWidth onClick={ () => window.dispatchEvent(new CustomEvent('ads:toggle')) }>Show Ad</Button> }
                         </Column>
                     </Column>
 					<div className="alertView_nitro-coolui-logo"></div>
@@ -35,7 +38,7 @@ export const NitroSystemAlertView: FC<NotificationDefaultAlertViewProps> = props
 						</Column>
 					</Column>
                 </Column>
-			
+
             </Grid>
         </LayoutNotificationAlertView>
     );
diff --git a/src/css/notification/NotificationCenterView.css b/src/css/notification/NotificationCenterView.css
index 45e3e4b..ec2c5e5 100644
--- a/src/css/notification/NotificationCenterView.css
+++ b/src/css/notification/NotificationCenterView.css
@@ -19,7 +19,7 @@
             min-width: auto;
         }
     }
-	
+
 	&.nitro-alert-credits {
         width: 370px;
         .notification-text {
@@ -34,6 +34,19 @@
             min-width: 225px;
         }
     }
+
+    &.nitro-alert-system {
+        width: auto;
+        min-width: 260px;
+        max-width: 90vw;
+        min-height: auto;
+        max-height: none;
+        height: auto;
+
+        .notification-text {
+            min-width: auto;
+        }
+    }
 }
 
 .nitro-notification-bubble {