Start   the   game   with  the  command-line  parameter
'-redrum -stendek'. Now during gameplay, press any of the following:

Code                    Result 
F7                      God Mode 
F8                      Invisibility 
F10                     Mission Complete AUTO 
F11                     Mission Complete MANUAL 
F12                     Mission Failed 

Cheat
     Open  up  the aquanox/dat/sav folder. With a text editor, open up
the  file  player_start.des In it you can change the amount of credits
you  start  the  game  with.  I used 999999 as my amount and it worked
fine.  If  you  try  more,  it  might crash. After all, you will see a
warning  "Do  not modify" at the top of the file, so don't get greedy.
This amount will carry over into the missions as you progress. You can
buy any ship and weapons that are available.