You just need a hex editor and a few minutes.
-Start a new game and make sure you turn on “unlock everything”. Save the game and quit.
-Now go to “%appdata%/locallow/eggcode/Mad Games Tycoon” and load the savegame into HxD. Your savegame is numbered 1 less than the slot it uses…
-Now search for this hex value “7B 7E 05 6D 6F 6E 65 79 0A 00 00 00 07” Change the next 4 digits to whatever you choose… FF is always a good max value.
-Save the file and load up your save in MGT, and play creative with more money than you need.