To activate these cheats in RollerCoaster Tycoon 3, rename a peep to the name in bold before each description. Cheats are listed by version; newer versions (listed first) include all of the cheat codes below them.
You can also print a printer-friendly version of these cheats, with all of the cheats condensed onto one page, by clicking on the "Print Cheat Sheet" button.
RCT3: Wild! Cheats Top
Animals Constantly Breed - Should make your animals reproduce very quickly, like rabbits.
Allow Large Billboard Movies
RCT3: Soaked! Cheats Top
This allows building shops etc. underground (use SHIFT to lower an object's position until it is say, level with an underground path).
This allows removal of the user interface (ie all the icons, menus etc) using CTRL+U once the cheat is active. This is great for taking screen shots. Press CTRL+U again to get the user interface back.
Enables you can place wall pieces and other scenery items on the edge of path tiles.
Alters the speed at which some sound effects are played at pause, fast and fastest.
Changes the inside of a tunnel from rubble to sharks on both sides, the ceiling and the floor.
v1a Beta Patch (for Original RCT3) Cheats Top
Decreases track friction, which can make coasters go faster along their tracks
Disable the Lift Chain Speed & Launch Speed limits. Normally, you are not permitted over a set speed limit. Usage: Select a coaster. Select "Operating Mode". You must have "Powered Launch" selected to alter the Launch Speed.
Unknown effect. (On the first Career mission, this code will double the value rating of your park - which will complete your first mission objective) (On other tested missions, it seems to possibly cause a slight increase in park value too)
Original RCT3 Cheats Top
John D Rockefeller
Increase your money by 1,000
Cheer (Lp) - All guests applaud you & jump into the air
All guests stand around looking down at the ground (are they looking for mice between their feet?)
Enables the "Advanced firework editor". Usage: Scenery -> Firework Mixmaster -> Fireworks Displays -> Add firework display -> Advanced firework editor
Cheer (Fade) - All guests applaud you
You are given a buggy vehicle to ride in - exit coastercam and delete as scenery when done
Open the "Flying Camera" routes editor (also available through Ctrl + Shift + 0 without using cheat)
Hitchcock - not sure what this does (could be related to the birds like Alfred's movie)
Every Person (both guests & staff) move super fast, though the game time passes at normal speed (rides & coasters do not speed up) (Expires after 20 seconds)
Make Me Sick
All guests become Sick and vomit immediately
PeepCam (see the world through the eyes of the guest who you just renamed)
Coaster Heights (ride & coaster tracks can be built without height limitations)
Unbreakable (Buildings/Rides/Coasters do not break down any longer)
Ride All Rides (make all guests ride every park ride before leaving the park) OR it may just make guests ignore their nausea rating
Ride All Coasters (make all guests ride every park coaster before leaving the park) OR it may just make guests ignore their nausea rating
Big Explosion - never saw a noticable effect on this one (assume it makes certain buildings, rides, or coasters explode OR could have some effect on the Fireworks)