Fast answer
The answer before the background
The official Alien Shooter TD Android package is com.sigmateam.alienshooter.towerdefence, published by Sigma Team Inc. on Google Play. The listing identifies Android, an offline tag, ads and in-app purchases, and also offers a separate Google Play Games on PC route. Install through that store page so the package, signature, purchases and updates remain tied to the correct account. Do not replace it with an APK mirror merely because the filename includes a newer version number; a copied title and icon do not establish Sigma Team provenance.
Identity
Verify the exact mobile product
| Field | Verified value | Why it matters |
|---|---|---|
| Package | com.sigmateam.alienshooter.towerdefence | Distinguishes the TD game from other Alien Shooter apps. |
| Publisher | Sigma Team Inc. | A mirror can copy artwork but not store ownership. |
| Store model | Contains ads and in-app purchases | Mobile progression and offers differ from paid Steam. |
| Connectivity label | Single-player and offline are shown in the current listing | Ads, purchases, updates and some account services still need a connection. |
| PC route | Google Play Games on PC | This runs the mobile product; it is not the native Steam license. |
Install
Use a clean first launch
Open the official Google Play page while signed in to the account that should own purchases. Confirm the package and developer, install, let all assets finish, and launch once online. Record the app version and any visible player identifier before changing devices.
If Google Play says the device is incompatible, do not solve the message with a random mirror. Check Android and Play services updates, storage, region and device support. The Google Play Games on PC page is the supported alternative when the mobile edition is available for Windows through Google.
Update and save
Protect purchases before reinstalling
- Check the Google account and purchase history before clearing app data.
- Record the package, version and player state; an offline tag does not guarantee every save is cloud-backed.
- Remove sideloaded copies before installing the store version so signature conflicts are visible.
- Use the support email shown on the official listing with receipts and error screenshots, never a password.
Platform boundary
Mobile and Steam are separate products
The Android description includes daily supply crates with ammunition, weapons and Coins, while the Steam store describes a paid Windows product. Do not assume balances, purchases, saves or prices transfer between them. Google Play Games on PC remains tied to the Google Play app identity.
Use the PC guide when choosing between native Steam and Google Play Games. Use the mod-safety page if an installed package does not match the verified ID or cannot receive official updates.
FAQ
Common questions
What is the official package name?
The verified Google Play package is com.sigmateam.alienshooter.towerdefence.
Is the mobile game labelled offline?
Yes, the current Google Play listing includes an offline tag, but ads, purchases, updates and account services can still require network access.
Can Android progress move to Steam?
No cross-platform transfer is promised by the checked stores. Treat Google Play and Steam ownership and saves separately.
Where should I get an update?
Use the same official Google Play entity tied to the installed package and account.
Sources
What we checked
Official listings establish current availability and product facts. Community pages are used for mechanics and build history, then labeled separately.
- OfficialOfficial Sigma Team Google Play listing
- OfficialOfficial Google Play Games on PC route
- OfficialOfficial Sigma Team website
- OfficialGoogle Play Protect help