This is not just a game, this is an ultimate battle royale experience!

Get ready to step into the unknown battlegrounds with an epic defense strategy where you will have to outwit, out gun, and outplay vicious alien creeps to win this massive battle simulator game.

Ultimate Alien Defense – Unknown Battlegrounds is an epitome of both tower defense strategy & real-time epic battle strategy game, letting you experience an adrenaline fueled nonstop alien defense on the last battlegrounds in a grand battle game. After the alien invasion you were one of the last man standing, be part of the lone survivor army where you will meet player unknown and defeat the aliens in the battle grand game. Recruit tactical battle soldier, place them on slots & let them take down the incoming horde of alien creeps.


Imagine you are the lone survivor of alien creep invasion in this futuristic battle game. This alien defense strategy is no piece of cake, you will have to collaborate with player unknown to you, and wage epic battle in unknown battlegrounds against the creeps. Use your tower defense skills effectively in this do or die situation because one wrong move may cost you your life and any chances of winning the grand battle.


Experience the ultimate battle royale in a totally new battle simulator as the alien war begins. Fight to be the lone survivor in the last battlegrounds against the grand battle aliens. Join the on-going war simulator against the alien horde. Choose between powerful troops all equipped with unique gear and devise a perfect defense strategy to win the massive war.


Thrills of Ultimate Alien Defense – Unknown Battlegrounds:

↪ 8 Special Forces to Choose Between, The Fearless, The SMG Equipped Jumbo, Hutch with His Rifle, Howling Jake At the Assault, Shot Gun of Black Baron, Submachine and Mad Dog, Black Eagle with Impeccable Snipping Skills & Big Al with His RPG Beauty
↪ Upgrade, Recruit & Trade Your Troops
↪ Graphics Settings to Enhance Your Battle Royale & Alien Defense Experience
↪ Devise an Epic Defense Strategy to Win the War Simulator
↪ Protect the City & Ultimately Defeat the Creeps
↪ Thrilling Missions to Complete
↪ High End Gears & Advance Intuitive Controls to End the Alien Reign
↪ 3D Sound Effects and Challenging Battleground Environment


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// Option A //

To download Ultimate Alien Defense mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Ultimate Alien Defense mod APK.
2. Save the file in your device Downloads folder.
3. Now tap on Install and wait for the installation to finish.
4. Once it is done, open the game and start playing it right away.

// Option B //

To download Ultimate Alien Defense from HappyMod APP, you can follow this:
1. Open your browser and download the HappyMod APK file from HappyMod.com - the only official website of HappyMod.
2. Open Android Settings and go into Privacy or Security.
3. Tap the option to Allow Unknown Sources and enable it.
4. Go to your Android downloads and tap the APK file.
5. Follow the directions on the screen to install it.
6. Search Ultimate Alien Defense in HappyMod App.