You must have download the free expansion pack for the following codes to work. Go to 'Options' and check the 'Cheat Keys' button to 'On'. Then press the following keys to unlock the corresponding effect. Using these cheats will lower your score to zero.

Adds $1000:
Ctrl M

Add Anomaly:
Ctrl O

Battleship:
Ctrl B

Teleport:
Ctrl T

Clear Fog of War:
Ctrl U

Clone Selected Ship:
Ctrl C

Create Colony Ship:
Ctrl Y

Create Random Ship:
Ctrl V

Decreases Morality:
Ctrl E

Increases Morality:
Ctrl G

Heals ship, restores Move Points:
Ctrl H

Assign ALL the worlds and Resources to major races:
Ctrl L

Adds Hit Points, Move Points, Attack and Defense Points:
Ctrl A

Increase the class of the Planets in the selected Star System:
Ctrl P

ALL Human Colonies complete their Social and Military Projects:
Ctrl J

Research current Tech (press the 'Shift' key to research ALL Techs except Final Frontier):
Ctrl S