1. Open config.ztd with winzip.
2. Open Economy.cfg with notepad or wordpad.
3. Search for cZooDooRecyclingAmount and change the number to whatever you want. This will be the profit for every recycle you do. Normally you recycle around 8-12 times per month.
4. Also, look for cKeeperCost which should be 800. This is the salary you pay your zoo keepers. Change it to something lower and your expenses will decrease dramatically.
5. If you want more money at start of the game, edit zoo.ini with notepad or wordpad and find a line called MSMaxCash. Change that to whatever you want and you can start out with a couple of million.
You can get instant money by pressing [shift] ($) but make sure you do it and get enough money before you make any animal cages or all your fences will break and your animals will get loose.
Turn off Foliage Drawing
Press Ctrl-F to turn off the drawing of all foliage on the map. Hitting Ctrl-F again will turn it back on.
Name an exibit Microsoft or name an exibit Blue Fang and get 2x donations.
Name a tour guide Rosalie and all your tour guied's salaries will turn to zero.
Put 10 different animals in the same exhibit.
Yellow Brick Road
Place a lion, Bengal tiger, and a Black bear in the same exhibit.
Dodo from Alice and Wonderland
Name a dodo Mr.Dodo than the dodo will turn in to the dodo bird from Disney's Alice and Wonderland.
Name a bear "Deer" and the bear will gets free.
Unlock the Triceratops
To unlock the Triceratops, rename one of your exhibits "Cretaceous Corral". The game may crash if you give this name to a new exhibit.
Unlock the Unicorn
To unlock the Unicorn, rename one of your exhibits "Xanadu". The game may crash if you give this name to a new exhibit.
Santa Claus - Wait to the day on Zoo Tycoon is Dec. 25 that is Christmas.
Easter Bunny - Wait to the day on ZooTycoon is Easter. He will enter your zoo.
Witch - Wait to the day on ZooTycoon is Oct. 30, Halloween. She will enter your zoo.
Zoo Tycoon Airplane - Wait for the day Sept. 15, day Zoo Tycoon was made. It will fly over the park.