Instant manpower and research
Press "`" (the apostrophe key) at the left end of the number row at the top of your keyboard to access the cheat screen.
For a huge increase in your manpower, type "manpower" and return
For instant research of all technology, type "research all". Beware, this includes all technologies, even those that are supposed to be mutually exclusive. Instead of "all", the format of cheat allows for either categories or specific technologies, but I haven't sorted out the specific words require.
More tricks, tips and cheats for this game are right here - Hearts of Iron IV cheats
Comments for this cheat