Press [TAB] while playing, then type:

Code                     Result 
nwcagents                Fill empty slots w/10 black knights  
nwclotsofguns            Gain all war machines  
nwcneo                   Gain a level  
nwctrinity               Fill empty slots w/5 archangels  
nwcfollowthewhiterabbit  Maximize Luck  
nwcnebuchadnezzar        Unlimited movement  
nwcmorpheus              Maximize Morale  
nwcoracle                Reveal puzzle map  
nwcwhatisthematrix       Reveal world map  
nwcignoranceisbliss      Hides world map  
nwctheconstruct          Gain 100,000 gold and 100 of each resource  
nwcbluepill              Lose game  
nwcredpill               Win game 
nwcthereisnospoon        Gain 999 Mana and all spells  
nwczion                  Gain all buildings  
nwcphisherprice          Change games colors to a wierd color scheme