Creative character and skill development system
Innovative weapon upgrade system
Now you can pick up the weapons and fight for the human density and the endless zombies. Remember that your first priority is to survive.
No one can expect that several isolated zombie cases will develop into a zombie world war, and now it has been upgraded to the battle of human race. This is the battle of the zombie world.
This is the new legend of the zombie killing of the first person shooter!
Simple control!
Quick action! Run, shoot and defeat all the undead to complete a wave.
A dangerous vaccine has developed a powerful virus that turns humans into zombies. This deadly virus spread caused zombie outbreaks and people immediately faced the danger of death.
Do everything you can to stop the zombie wave and use what you want to fight to the final victory.
This is a brand new gaming experience, which is not what you have played before!

// Option A //

To download Death Contract mod from HappyMod.com.
You need enable the option "Unknown Sources".
1. Click on the above link to download Death Contract 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 Death Contract 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 Death Contract in HappyMod App.