Total Annihilation

1st campaign cheat:
At the single player game screen, type DRDEATH. once the bone appears, click on it and you can play any mission in the game.

Press the enter button on the keypad to bring up the textbox and then type in the cheats.

+DoubleShot - Units/towers does twice as much damage
+ATM - Increase your supply of metal and energy by 1000
+Dither - Dithered line of site instead of gray
+Radar - Have a 100% radar coverage
+NowISee - Display the whole map and see all units
+Contour# - Reveals 3D terrain mesh (# = 1-5)