Embark on a thrilling rescue mission in Sector 781, a fast-paced sci-fi shooter for your browser!

Latest Version

Version
1.0.4
Update
March 25, 2025
Size
3.51MiB
Developer
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Users
0
Rating
1 ★
Manifest Version
3
Web Store Status
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Sector 781 - Action & 3D & Shooting & Space Game Extension

Sector 781: Browser-Based Sci-Fi Shooter
Embark on an intergalactic rescue mission in Sector 781, a thrilling browser-based action game 🚀 where you pilot a high-tech spacecraft to save humanity from alien invaders. This free-to-play title combines intense combat, strategic upgrades, and retro-futuristic visuals for an addictive gaming experience—available directly as a browser extension with offline play support!

Game Features:
- Fast-Paced Space Combat: Battle swarms of alien drones, agile fighters, and colossal bosses using lasers, missiles, and energy shields.
- Progression System: Unlock 15+ ship upgrades like plasma cannons, holographic decoys, and warp drives to customize your playstyle.
- Dynamic Environments: Navigate asteroid fields, nebula storms, and derelict space stations with physics-based movement.
- Offline Accessibility: Play without internet via browser extension—perfect for commutes or low-connection areas.
- Achievements & Challenges: Earn 50+ badges for timed runs, no-damage clears, and creative weapon combos.

Unique Browser Features:
- One-Click Installation: Add directly to Chrome/Edge/Firefox in seconds—no downloads or registrations.
- Low System Requirements: Smooth performance on older devices thanks to lightweight pixel-art graphics.
- Cross-Device Sync: Continue your campaign on any computer with browser synchronization.

Why Players Love It:
Sector 781 revitalizes classic arcade shooters with modern roguelike elements. Each 20-minute run offers fresh enemy patterns and randomized power-ups, while permanent upgrades keep long-term goals rewarding. The hybrid control system (keyboard + mouse/touchpad) ensures precision aiming during chaotic battles.

Free Forever, No Ads: Enjoy uninterrupted gameplay with zero paywalls—all content unlocks via skill and persistence.

Whether battling biomechanical leviathans or mining asteroids for upgrade materials, Sector 781 delivers bite-sized sci-fi action optimized for browser gaming. Join over 2 million pilots in this cosmic showdown—your browser is the cockpit! 🔥🪐💥

We provide a \"Play More Games\" button in the extension and open our official website when you first install it, where you can experience more free games.
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Source Manifest.json

{"update_url": "https://clients2.google.com/service/update2/crx", "manifest_version": 3, "name": "__MSG_extensionName__", "version": "1.0.4", "description": "__MSG_extensionDescription__", "default_locale": "en", "icons": { "128": "icon/128.png" }, "offline_enabled": true, "action": { "default_title": "__MSG_extensionActionTitle__" }, "background": { "type": "module", "service_worker": "/js/background.js" }, "web_accessible_resources": [ { "resources": [ "/game-source/archive/archive_files.json", "/game-source/archive/game.arcd0", "/game-source/archive/game.arcd1", "/game-source/archive/game.arci0", "/game-source/archive/game.dmanifest0", "/game-source/archive/game.projectc0", "/game-source/archive/game.public.der0", "/game-source/dmloader.egjdata", "/game-source/readme.md", "/game-source/refold-160.png", "/game-source/scripts/v2/poki-sdk.egjdata", "/game-source/scripts/v2.313.0/poki-sdk-core-v2.313.0.egjdata", "/game-source/Sector781.wasm", "/game-source/Sector781_wasm.egjdata" ], "matches": [ "https://*.codeplaymaster.com/*" ] } ]}
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How to download and manually install Sector 781 - Action & 3D & Shooting & Space Game extension for Chrome

Looking for a way to install Sector 781 - Action & 3D & Shooting & Space Game extensions for Chrome, you can search for them in the Chrome Web Store, clicking the "Add to Chrome" button, and following the straightforward process.

However, you may need to install Sector 781 - Action & 3D & Shooting & Space Game extensions manually, this article outlines two simple methods to effortlessly install Sector 781 - Action & 3D & Shooting & Space Game extensions, whether they come as unpacked folders in compressed formats like .zip or as .crx files.

Method 1: Download Sector 781 - Action & 3D & Shooting & Space Game extension and manually install through Drag &Drop

If you ever need to manually install a Sector 781 - Action & 3D & Shooting & Space Game extension for Chrome, don't worry, it's a simple process. Just follow these easy steps, and you will have your extension ready to use in no time.

Step 1: Download the Sector 781 - Action & 3D & Shooting & Space Game Extension by clicking the "Download CRX" button on the website.

Look for the Sector 781 - Action & 3D & Shooting & Space Game extension you wish to install. Go to the website and download the Sector 781 - Action & 3D & Shooting & Space Game extension package, which is usually a .CRX file and comes in a zipped file. Here ".crx" file is the format for Sector 781 - Action & 3D & Shooting & Space Game extension that contains all the data.

Step 2: Extract &Arrange Files

Once the file is downloaded, extract that file into its own folder. Similarly, give that extension files a permanent home. In other words, keep it in a folder that you don't accidentally delete it because these files will be needed to make that extension work.

Step 3: Go to the Chrome Extensions Page

Open Google Chrome and in the address bar, type chrome://extensions; it will open the Google Chrome extensions page. Make sure that "My extensions" is selected in the sidebar.

Step 4: Drag and Drop the Extension

Now, go to the folder where you extracted the Sector 781 - Action & 3D & Shooting & Space Game extension and drag &drop the extension file from there anywhere onto the extension page within Google Chrome.

Step 5: Complete the Installation

Once you drag and drop the extension file, follow the steps that Google Chrome takes you through. Similarly, if the extension file is of .crx file format, you will be required to review the permissions and then add the extension.

Now, you can manage that added extension as you would like to with any other Chrome extension that you added through Chrome Webstore. Its icon will also appear in the Google Chrome Menu on the right side of the address bar once you activate it.

Method 2: Download Sector 781 - Action & 3D & Shooting & Space Game extension for Chrome and install in Developer Mode

This is another method to install Sector 781 - Action & 3D & Shooting & Space Game extension manually, but the twist is that here, you install by enabling the developer mode option provided in Google Chrome. This mode is commonly used for testing extensions or running unpublished tools.

Step 1: Download the Sector 781 - Action & 3D & Shooting & Space Game extension file

Select and download the Sector 781 - Action & 3D & Shooting & Space Game extension by clicking the 'Download CRX' button on the website.

Step 2: Extract the downloaded contents

Convert the file to a ZIP file if it is in CRX format then extract the Sector 781 - Action & 3D & Shooting & Space Game extension zip file or folder that you downloaded. Make sure you extract it using the same folder name and keep it safely in another folder, so you don't delete it by mistake. The extracted folder will be needed to keep your Sector 781 - Action & 3D & Shooting & Space Game extension running.

Step 3: Open Chrome Extension Setting Page

In the address bar of Google Chrome, type chrome://extensions and open the Chrome Extension Page.

Step 4: Enable Developer Mode

After opening the Chrome Extension page, look at the top right side, and you will find the toggle option of "Developer mode."Simply enable that developer mode option.

Step 5: Load the Unpacked Extension

Once you enable the developer mode option, you will see the menu of Load Unpacked, Pack Extensions and Update. From that, select the option "Load unpacked."

Step 6: Select the Extension Folder

Once the pop-up opens upon clicking Load unpacked, select the Sector 781 - Action & 3D & Shooting & Space Game extension directory and click on the "Select Folder "button.

Step 7: Confirm and Install

After you select an extension folder of a Google Chrome extension you're installing manually, confirm its installation for the final time and let the installation complete.

Conclusion

Here we've made a step-by-step guide on How to manually install Sector 781 - Action & 3D & Shooting & Space Game extension in 2 ways. We hope this guide proves helpful.

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