Sim City 3000 Cheats

Enter a new city. Enable the i am weak code
and use the Terrain Ten Down several times until the entire map
is covered by water. Then, use the Raise Terrain command in an
square, followed by the Smooth Terrain command to cover all places
on the map.

While in the simulator, press [Ctrl] + [Alt] + [Shift] + C to display a prompt box with a flashing cursor in the top left corner of the screen. Then, type one of the following codes and press [Enter] to activate the corresponding cheat function:
Result
Cheat Code
All extra gifts pay tribute to your king
All power plants power to the masses
All water plants water in the desert
High tech industries nerdz rool
Stops advice stop forcing advice
Traffic lights reduce pollution, traffic, and increase land value traffic lights
Recycling plant, waste to energy incinerator and normal incinerator garbage in, garbage out
Construction costs set to $0 i am weak
SimCastle construction, if Vinnie's offer was declined zyxwvu
$100,000 donation offer from Vinnie call cousin vinnie
Flock of birds fly over your city the birds
Set "Disaster" to "UFO" for unlimited UFOs ufo swarm
Change the sea to salt water salt on
Change the sea to fresh water salt off
Raises the terrain by one terrain one up
Lowers the terrain by one terrain one down
Raises the terrain by ten terrain ten up
Lowers the terrain by ten terrain ten down
Load grayscale picture as terrain load terrain
"Sorry, Money Doesn't Grow On Broccoli" message broccoli
"Aha! We Have A Real Pro Here! Try BROCCOLI" message porntipsguzzardo
"Da Da Da Da Da Da Da Da Da BAT-man!" message bat
"If You Build It, They Will Come" message scurk
"The Llama Is A Quadruped" message llama
"Duo Ragazzi's Easter Egg Palace: Old World Charm In A Post Modern Setting" message easter egg
"If You Lived Here, You'd Be A Sim" message sim
"Dozens Of Hidden News Ticker Reveals; Sims Encouraged To Collect Them All And Amaze Friends" message help
"What Will He Think Of Next?" message will wright
"Investment Tip: Buy Low, Sell High" message erts
"Not Just Sports Games Anymore" message electronic arts
" Picayune: The Finest In Scrolling Entertainment" message ticker
"Money Does NOT Grow On Trees, Study Concludes" message money
"Keep Trying And Maybe You'll Figure It Out" message simcity
"Greetings Mayor, Your Sims Salute You" message hello
"Mayor brings To News Ticker Highlight" message mayor
"Mayor Suspected Of Attempting Embezzlement; Ends In Failure" message sc3k
"Secret Number Combination Causes Announcement In News Ticker" message 1234
"Did you know that MAXIS spelled backwards is SIX AM?" message maxis
"MOREMONEY Not Cheat Code, Research Concludes" message... 

Not only keep the clean air act and all the industrial laws, activate the cheat screen and type nerdz rool. It will put air friendly industries, like muffin companies, etc.

All extra gifts - pay tribute to your king
All power plants - power to the masses
All water plants - water in the desert
High tech industries - nerdz rool
Stops advice - stop forcing advice
Traffic lights reduce pollution, traffic, and increase
land value - traffic lights
Recycling plant, waste to energy incinerator and normal
incinerator - garbage in, garbage out
Construction costs set to $0 - i am weak
SimCastle construction, if Vinnie's offer was declined - zyxwvu
$100,000 donation offer from Vinnie - call cousin vinnie
Flock of birds fly over your city - the birds
Set "Disaster" to "UFO" for unlimited UFOs - ufo swarm
Change the sea to salt water - salt on
Change the sea to fresh water - salt off
Raises the terrain by one - terrain one up
Lowers the terrain by one - terrain one down
Raises the terrain by ten - terrain ten up
Lowers the terrain by ten - terrain ten down
Load grayscale picture as terrain - load terrain
"Sorry, Money Doesn't Grow On Broccoli" message - broccoli
"Aha! We Have A Real Pro Here! Try BROCCOLI" message - porntipsguzzardo
"Da Da Da Da Da Da Da Da Da BAT-man!" message - bat
"If You Build It, They Will Come" message - scurk
"The Llama Is A Quadruped" message - llama
"Duo Ragazzi's Easter Egg Palace: Old World Charm In A Post
Modern Setting" message - easter egg
"If You Lived Here, You'd Be A Sim" message - sim
"Dozens Of Hidden News Ticker Reveals; Sims Encouraged To
Collect Them All And Amaze Friends" message - help
"What Will He Think Of Next?" message - will wright
"Investment Tip: Buy Low, Sell High" message - erts
"Not Just Sports Games Anymore" message - electronic arts
"<city name> Picayune: The Finest In Scrolling Entertainment"
message - ticker
"Money Does NOT Grow On Trees, Study Concludes" message - money
"Keep Trying And Maybe You'll Figure It Out" message - simcity
"Greetings Mayor, Your Sims Salute You" message - hello
"Mayor <mayor name> brings <city name> To News Ticker
Highlight" message - mayor
"Mayor Suspected Of Attempting Embezzlement; Ends In Failure"
message - sc3k
"Secret Number Combination Causes Announcement In News
Ticker" message - 1234
"Did you know that MAXIS spelled backwards is SIX AM?"
message - maxis
"MOREMONEY Not Cheat Code, Research Concludes" message - moremoney
"Mayor Under Investigation For Possible... 

Press one of the following keys to build something without using the tool bar to the right and bottom [DO NOT PRESS CTRL+ALT+SHIFT+C to do these codes!!]

press to build(or zone)

Q Light Residental
W Medium Residental
E Dense Residental
R Road
T Rail Road
Y Landfill
U Trees
P Police Station
A Light Commercal
S Medium Commercal
D Dence Commercal
F Fire Station
G Change dirt to grass
H Hospital
J Small Park
K School
L Power Line
Z Light Industy
X Medium Industy
C Dense Industy
V De-Zone
B Demolish
1 Zoom out all the way
2 Zoom out 2nd from all the way
3 Zoom in half way
4 Zoom in 2nd from all the way
5 Zoom in all the way
F2 Saves the game