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With SimCity 3000 Unlimited you call the sho, and watch your own city grow as "Start New City", except this allows you to load a Real World Terrain.
Generating custom terrain from bitmaps SC3000.COM
SimCity 3000 le you "paint" your own terrain by importing special bitmaps. Type "load terrain <path to your bitmap>" into the textbox.
CCG: SimCity 3000 Chea
SimCity 3000 Load grayscale picture as terrain Then type "load terrain" in the console window. SimCity 3000 Get all rewards and opportunities
Cheat Patch Macintosh Sim City 3000 Cheat Codes
Cheat Codes for the Macintosh game called Sim City 3000. Load grayscale picture as terrain load terrain "Sorry, Money Doesn't Grow On Broccoli" message
TVG: Sim City 3000 Chea, Hin and Codes
Sim City 3000 Get the latest chea, hin and walkthroughs for Sim City 3000 on Macintosh. Load grayscale picture as terrain load terrain

Generating custom terrain from bitmaps - SC3000.COM
SimCity 3000 lets you "paint" your own terrain by importing special bitmaps. Type "load terrain <path to your bitmap>" into the textbox.
CCG: SimCity 3000 Cheats
SimCity 3000 Load grayscale picture as terrain Then type "load terrain" in the console window. SimCity 3000 Get all rewards and opportunities
Cheat Patch - Macintosh - Sim City 3000 Cheat Codes
Cheat Codes for the Macintosh game called Sim City 3000. Load grayscale picture as terrain load terrain "Sorry, Money Doesn't Grow On Broccoli" message
TVG: Sim City 3000 Cheats, Hints and Codes
Sim City 3000 - Get the latest cheats, hints and walkthroughs for Sim City 3000 on Macintosh. Load grayscale picture as terrain load terrain
IGN: SimCity 3000 Cheats, Codes and Cheat Codes
IGN Cheats is the ultimate resource for SimCity 3000 cheats featuring cheats, codes, walkthroughs, Then type "load terrain" in the console window.
SC3K Unlimited Tips & Tricks
SimCity 3000 doesn't ship with a separate terrain editor like SimCity 2000 did. Type "load terrain <path to your bitmap>" into the textbox.
Sim City 3000 Cheats - Macintosh - Video Game Cheats - eLook.org
Contains cheats on Sim City 3000 for the Macintosh. Load grayscale picture as terrain load terrain "Sorry, Money Doesn't Grow On Broccoli" message
SimGaming.net - SimCity 3000 - Cheat Codes
SimGaming.net - SimCity 3000 Cheat Codes - (Note: Destroys city, use before building). load terrain [path] - Use this to load a .bmp terrain.