Lonely survivors 2.0

A strange poison entered the city, and almost all of the city turned into a zombie.
Zombies are very fierce, they can destroy everything that stops them.
There is only one change to save the city.
The spy team (including the suicide squad, special forces, special police forces) has elite and brave soldiers. Each soldier has different skills and strengths to form a strong team that can beat everything.
So now, let's take your spy team to kill the zombies and save the city.
In addition, you also have different skills to help you beat zombies.
Well, you can use your gold and gems to upgrade your soldiers and skills to gain maximum power.

Characteristic：
- 8 soldiers with different skills and abilities.
- 9 types of zombies have different abilities (freezing unit, suicide bomber...)
- 3 skills you can use.
- diversity upgrade system (health, damage, scope, key...)
There are many diverse tasks to get more gold and gems.