Alien Defense

At night, Alien breaks into the base.
Place the defenses tower and units properly and defeat all Aliens invading the base

This game is a build-type defense game that collects resources and builds a village.
We need to train soldiers to stop Aliens coming in.
Upgrade can produce stronger units.

Buildings
1. Command Center - When destroyed as the last survival station, the game is over. Basically It takes 20 the number of population
2. Supply Depot - It increases the capacity of the population
3. Barracks - If you can produce the attack unit droid, the special unit will be produced with a 20% chance.
4. Engineering bay - This building is responsible for upgrading the attack and defense of the unit.
5. Factory - It's a building you need to produce goliaths.
6. Nuclear laboratory - You can produce and launch nuclear weapons.
7. Railgun - It's a turret that can attack with a distance of 15
8. Tesla - It's a defense tower that returns damage from enemy attacks.

Special unit
If you block Alien's attack, you'll get a special unit, which is used to make heroes

Hero unit
There are 22 heroes in the top unit and you can use various skills

Super hero
When you reach level 8, you can use a droid to transcend and become stronger