During gameplay press ENTER to get the message box and put in a code below (in bold) then press ENTER again to activate

fastbuild: WarpTen
fastdeath: IocainePowder
godmode: WhosYourDaddy
Gold: KeyserSoze [amount](i.e. 'keysersoze 50000' will give you 50000 gold) Note - Default is 500.
Lumber: LeafItToMe [amount] Note - Default is 500.
resource: GreedIsGood [amount] Note - Default is 500.
food: PointBreak
mana: ThereIsNoSpoon
cooldown: TheDudeAbides
nodefeat: StrengthAndHonor
novictory: ItVexesMe
research: WhoIsJohnGalt
showmap: ISeeDeadPeople
techtree: Synergy
dawn: RiseAndShine
dusk: LightsOut
time of day: DaylightSavings [hour] (i.e. 'daylightsavings 12' will set time to 12 noon) Note - The cheat without any numbers halts day/night progression as a toggle.
upgrade: SharpAndShiny
level jump: Motherland [race] [level] (i.e. 'motherland human 04' will jump you to campaign level 3) Note - The level number must include interludes. So, to get to Human 9, you must actually type 'motherland human 12' since there are 3 interludes in that campaign.
defeat: SombodySetUpUsTheBomb
victory: AllYourBaseAreBelongToUs

Info submitted by NBLSU on Thursday, June 27, 2002 at 16:29:29

Find the enemy with out cheating

If you think you beat the level but it wont say it most likely there is one more thing out there. if you press Tab{on the key board}the map will turn black and the enemy will turn their color. Therefore it will be easy to spot the enemy.