You are the last line of defense. Waves of alien invaders are closing in — hold your ground and survive as long as you can.
Defend or Be Destroyed
Base Defender is built around survival under pressure: aim, fire, upgrade, and adapt as the invasion grows stronger. Waves arrive from the skies and streets, the arsenal evolves over time, and every second pushes your base closer to the edge.
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Hold the Line
Defend the base from a fixed position as waves close in from multiple directions across the besieged city.
- Fast-paced defense action
- Urban siege combat
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Survive Relentless Waves
The longer you last, the harder the pressure becomes, forcing faster reactions and sharper target priorities.
- Endless wave pressure
- Increasing intensity over time
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Upgrade Your Arsenal
Boost your firepower with machine guns, heavy shells, homing missiles, flamethrowers, miniguns, and more.
- Evolving weapons
- Strategy adaptation
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Play Comfortably
Face different enemy types from skies and streets, with built-in left-handed support for a more comfortable setup.
- Varied alien threats
- Left-handed mode
Key Features
Defense Action
- Protect a strategic base in a city under siege
- React quickly as threats arrive from several directions
- Survive as long as possible in single-player action
Weapons & Upgrades
- Use machine guns, heavy shells, homing missiles, and miniguns
- Unlock flamethrowers and other firepower upgrades
- Adapt your strategy as the pressure rises
Enemies & Pressure
- Face alien enemies from the skies and the streets
- Deal with a wide variety of enemy behavior and attack patterns
- Handle relentless hordes with no downtime between threats
Accessibility
- Use built-in left-handed mode for a comfortable control layout
- Play with a clear Android-focused interface
- Jump into fast action without complex setup
Screenshots
Download Base Defender
Ready to defend your base? Download Base Defender: Urban Siege now and face the invasion!
