The Green Star Companion App
We have upgraded to a Universal Web App.
Play instantly in your browser on any device (Phone, Tablet, or PC), or install it for offline, full-screen immersion. No App Store download required.
(installation is optional)
How To Install The App on Your Device
iOS (iPhone & iPad)
- Launch the app link in Safari and wait for the app to load.
- Tap the Share button (can be found in the three dots menu ⋯)
- Scroll down and select Add to Home Screen.
This saves the app to your device and removes the browser bars for full immersion.
Android
- Launch the app link in Chrome and wait for the app to load.
- You may see a prompt on you screen to Install the app.
- If not, tap the three dots menu (⋮) and select Add to Home Screen.
The app will appear in your drawer just like a native app.
Frequently Asked Questions
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There isn't one! The Green Star uses modern web technology to run directly on your device. This allows us to push updates instantly and works across all platforms (iOS, Android, Windows, Mac) without downloads.
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The app saves your progress automatically.
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It depends on your device.
On Android: No.
Once you install the app, it saves permanently to your device. You should be able to play offline (in a bunker, on a plane, etc.) without issues.
On iOS (iPhone & iPad): We recommend keeping a connection.
Due to Apple's strict storage policies, iPhones often delete "unused" web data to save space, even if you added the app to your home screen. If your phone decides to clear the game files, you will need an internet connection to reload them.
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On older devices (e.g., iPhone 8, older iPads, or budget Androids), the app can need more than a minute to decrypt and initialize the game engine. Please do not refresh the page; it will start shortly.
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The Green Star features a high-fidelity 3D simulation that requires modern web graphics (WebGL 2.0). If you are using an older device (such as an iPad Air 1, iPhone 6, or older Android), it may not be supported.
The Fix: Because this is a universal web app, you aren't tied to your phone! You can simply open this URL on a laptop, desktop computer, or a partner's device to play immediately. No download required.