Offline sci-fi tower defense on Android

Mech Tower Defense is an Android strategy game about building a mech squad and defending against alien enemy waves. It combines different tower types, talent choices, equipment progression, and regional campaign missions.

What works offline?

Core single-player gameplay works without an internet connection. Download and install the game from Google Play before playing offline. Online services, rewarded ads, and purchases need a connection.

Is it free?

The Android game is free to download and contains ads and optional in-app purchases. You can check the current listing, availability, and device compatibility on Google Play.

What kind of strategy does it use?

You place towers to defend enemy routes, upgrade your formation, and choose talents during a run. Equipment and Tower Bonds add more ways to shape a squad. Read the beginner guide and tower guide for an introduction.

Where is the official download?

Use the Google Play button below. Availability depends on your Google Play account region and device. The package name is com.dogdogdog.mechtowerdefense.

Official game guide by Dogdogdog. Updated October 21, 2026. Ads and optional in-app purchases.