Sim City 3000

Press Ctrl+Alt+Shift+C to bring up the cheat window. Now type in these codes and press Enter to activate:

Code	Effect
i am weak	Everything is free
call cousin Vinnie	In 'Meet' window, you'll be offered some cash.
garbage in, garbage out	All garbage buildings available
power to the masses	All power plants available
water in the desert	All water plants available
nerdz rool	All industry becomes High Tech
pay tribute to your king	Gives all rewards
salt on	Makes all water salty
salt off	Makes all water fresh
I love red tape	Description of city hall becomes "miles and miles of red tape"
let's make a deal	All of the connected petitioniers start making deals with you
ufo swarm	Set 'Disaster' to UFO for tons of UFOs
the birds	Flock of birds flies over city
stop forcing advice	Makes Advisors stop advising
force mortimer to say (XXXX)	Mortimer will say (XXXX)
force gus to say (XXXX)	Gus will say (XXXX)
force constance to say (XXXX)	Constance will say (XXXX)
force karen to say (XXXX)	Karen will say (XXXX)
force randall to say (XXXX)	Randall will say (XXXX)

The following codes should be entered the same way as above. They prompt different message on the screen.

broccoli	ticker
porntipsguzzardo	money
bat	simcity
scurk	simon says
llama	hello
easter egg	mayor
sim	sc3k
help	1234
will wright	maxis
erts	moremoney
electronic arts	advisor

Add every building to the Landmarks window (and remove the 10-landmark limit):

Open the Power Plant window (under Utilities Menu), and then close it with the X button in the top right corner.
Now open the Rewards & Opportunities window (under Civic & Special menu), and then close it with the X button.
Go back to the Utilities menu and open the Garbage Disposal window, and then close it with the X button.
Now finally, go back to the Civic & Special buildings menu and open the Landmarks window.

You should notice that the list of landmarks has grown considerably. This code makes all of the structures in the game available to place at your free will (and at free cost) anywhere on your city map. Also, the quantity restraints have been lifted, so you can place as many landmarks or structures as you want. You can also place duplicate landmarks or structures.