Each players is assigned an Alliance ID. Try to add as many friends as possible as this will make you virtually impossible to destroy. Also, if you go into battle you can bring up to four of your alliances best units to help you fight and defend.
Upgrade your oil derricks ASAP to get the funds rolling in.
Build your defensive building and upgrade them too. This will ensure attackers use more energy and units trying to steal your gear.
Curency in the game
There is two types of curency ion the game:
Cash - Paper money a basic currency of the game. You can collect it from your buildings and when you loot the bases of your enemies.
Gold Bars - A secondary currency used for special benefits such as speeding up the wait time of construction and upgrading as well as repairs and the purchase of special units, weapons, vehicles, buildings, and clothing items for avatars.
Spending Skill Points/Leveling Up
Each time you level up in the game you are rewarded with three skill points that you will be able to spend on the following categories:
Attack - Improves your chances when attacking rivals.
Defense - Improves your defensive strength to fend off rival attackers
Energy - Increase to do more missions (Starting at 100/100 - 1 skill point = 10 energy)
Stamina - Increase to raid and attack more. (2 Skill points = 1 Stamina point)
Goals and Missions
Goals are an important part of the game as they serve as a tutorial tool at first and then guide you through the game until you form your own strategies to play with. A goal may have multiple missions or parts of missions listed. Sometimes you can click on buttons that take you directly to the store menu so you can purchase items or to a battle menu so you can attack based on what the goal requires. Once you complete a goal a notification will be shown as well as a screen showing how much money and XP you have been rewarded with.