While in the game, press Enter, type the code, then hit Enter again. The following cheats will work only in version 1.0F or above.

Code Effect

giveships [number] Creates specific units (Numbers: 0-16 for Terran, 32-48 for Argo)
massacre Gives lots of units to everyone in the game
giveshipsall [number] Gives specific units to everybody (Numbers: 0-16 for Terran, 32-48 for Argo)
god like Gives you units, four for each unit class
warp ten Instant creation of new units / buildings, except for those already
food for all No further supply creation is required
let battle be One unit per class to each player in the game
failure not an option Player wins current game session / mission
kamikaze Players loses current game session / mission
spawn player [number] Provides Starbase and starting units to a defeated player
give money You get 10.000 credits