simcity4
Reactivate God mode 
To reenter God mode after you have created your City, hold [Ctrl] + [Alt] + [Shift] and click the "God Mode" button. The tools will not be the post-establishment tools, but will revert back to pre-city tools. They will remain that way as long as you stay in God mode, otherwise they go back to normal.

Brainwashing 
On the adviser screen, click the query box, then click the "X" on the bad or good messages.

Quick money 
Use the following trick to quickly accumulate money:

1. Press [Ctrl]+ X 
2. Type "weaknesspays" 
3. Hold [Left Shift] 
4. Press [Enter] 
5. Press [Cursor Up] 
6. Press [Enter] 
7. Repeat steps 5 and 6; you will get $1000 each time. 

Capitalism
While playing a game, hold [Shift] and press 6789 to enable cheat mode. If you entered the code correctly, a message will appear. Enter one of the following codes to activate the corresponding cheat function:

RESULT  CHEAT CODE  
10,000,000 extra credits = [Alt] + C

Commandos
Enter "SOYINCAPAZ" as a name to enable cheat mode. Then, press one of the following keys during a game to activate the corresponding cheat function. Cheat mode can also be activated during a mission by typing "SOYINCAPAZ" after selecting a commando (you cannot see what you type and there will be no confirmation).
RESULT  CHEAT CODE  
Invincibility = [Ctrl] + I 
Invisibility = [Ctrl] + V 
Destroy all opponents = [Ctrl] + [Shift] + X 
Mission skip = [Ctrl] + [Shift] + N  
Place selected commandos under the pointer = [Shift] + X 
Display frame rate = [Ctrl] + [Minus] 

WarCraft 3: The Frozen Throne
Invincibility and one-hit kills = whosyourdaddy 
Infinite mana = thereisnospoon 
Full map = iseedeadpeople