Air Skill	This skill is decisive in allowing you access to Fly High as well as giving you access to jobs such as Pilot Instructor and Air Traffic Controller. It can be raised over time by flying any aircraft.
Gathering Skill	This skill effects the potential amount that you can harvest when gathering any resource and increases over time as you gether more resources.
Mining	Not used.
Strength Skill	This skill effects the amount of weight you can carry in your inventory, it can also be increased by the use of various drugs but be careful not to overdose.
Vehicle Skill	This skill affects your access to various vehicle shops as well as the types of vehicle that you can produce at the factory, it can be raised over time by driving any ground or sea vehicle.

 

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See also:
Skill O Matic