Enter these as your name when creating a new commander. You can use multiple cheats too.

Code	Effect
Sell All Items	All items now equally for sale
Anarchy	All Sectors now anarchic
Double Damage	All weapons now cause double damage
Billionaire	Billion dollar grant
Reveal Map	Galactic map revealed
No Guild System	Guild restrictions removed
Millionaire	Million dollar grant
No Missiles	Missiles and counter measures removed
No Shields	Shields and armor removed
Jameson	Welcome back commander
God Mode	You are now invincible

Note: Tested with version 1.04.