Henry Cavill has built a 16-bit game on a Googlebook laptop, and anyone can play it in a browser. Players stop a rogue CGI agent from erasing every mustache on the planet.
Each game played also raises money. From 11 to 30 November, Google will donate $11 to Movember for every game played, up to $500,000.
The game, Mustache Protocol, is live now. According to Google’s blog post, Cavill teamed up with the company to build it on his Googlebook, the new laptop line Google is promoting. Google says every play helps drive awareness and funding for men’s mental health, suicide prevention, prostate cancer, and testicular cancer. Most details in this story come from Google’s own posts, so the build account is Google’s, not independent reporting.
What’s in the game
Cavill appears as the mustachioed hero, and his dogs Kal and Baggins make cameos. Players find power-ups called “tank attack” and “arm reload”, along with Easter eggs.
The controls are simple arcade ones: move, jump, and swing a “mustache-comb sword”. You can play in a web browser or on a desktop or mobile device at googlebook.com/henry, where the three behind-the-scenes episodes are also available. Google’s post doesn’t mention a price or sign-up.
How it was made
Google published a three-part series on how Cavill built the game with Googlebook’s tools. In the first episode, he designed the handlebar-mustachioed hero with Magic Pointer and Quick Access. In the second, he used Rambler to create the superpowers and health boosts.
The finale covers the audio and the final build. Continue On moved music from his Android phone to the Googlebook desktop, and Rambler turned his voice commands into prompts. He used BandLab for beats and recorded vocals.
Using Antigravity, the next-gen agentic platform built into Googlebook, Henry stitched together the final visuals, level layouts, and interactive elements — the last steps in taking the game from an idea to a live, playable build.
Google’s blog post
The project was announced on 29 September, when Google said Cavill would build a video game on Googlebook “this November”. Google’s post describes him as an actor, producer, and tech enthusiast. Cavill is also tied to Warhammer 40,000, where Games Workshop says he remains involved.
Google is also pushing browser games from another direction. Its Labs experiment Playground turns a chat prompt into a playable browser game.
What Googlebook is
Googlebook is a line of premium laptops built on the Android technology stack, with desktop foundations from ChromeOS. Google designed it for Gemini Intelligence and to work with an Android phone. Android Authority says Google doesn’t make the laptops itself. Its pre-order post says Acer, ASUS, Dell, HP, and Lenovo build the first models.
Prices start at $899. Digital Trends lists the starting price for each maker’s model:
| Model | Size | Starting price |
|---|---|---|
| Acer Googlebook 14 | 14-inch, convertible | $899 |
| Lenovo Googlebook 15 | 15.3-inch | $1,099 |
| Dell (XPS design) | 13.4-inch | $1,199 |
| ASUS Googlebook 14 | 14-inch | $1,299 |
| HP | 14-inch | $1,299 |
Google says every Googlebook includes 12 months of Google AI Pro, with 5TB of cloud storage and higher Gemini limits. It also bundles 3 months of YouTube Premium, Adobe Photoshop, and a year of GeForce NOW. Updates are promised for up to 10 years.
In Google’s first-look post, the laptops use Intel Core Ultra Series 3 or Snapdragon X Elite processors, with NPUs running at over 45 TOPS. RAM starts at 16GB, with some models going up to 32GB, and Google quotes up to 14 hours of video playback.
Pre-orders opened on 21 September on the Google Store, Best Buy, and other select retailers. Googlebooks reached shelves on 4 October in the US and on 5 October in Canada, the UK, Ireland, France, Germany, and Australia. The donations run until 30 November.
