Tools & Utilities

Coaster sounds
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This (rather old) mod replaces the in-game coaster sounds with NL and ScreamMachines-based ones.
To install, after backing up the original files, put the OVL files inside this archive in
RCT3 Install Dir\Tracks\TrackSounds
Made by FranceCoaster.

With these files, you can replace the 2D vanilla wooden supports, with 3D wooden supports. Created by DasMatze. 

Description written by Old-Spice: 
I remade the steel supports. I thought that it may make supporting a little easier with out having to remove the entire rides supports. My supports are .5m wide, or 500mm and they have 8 sides as well.
Install:
Place the folder "ts1" in "C:\Program Files (x86)\Atari\RollerCoaster Tycoon 3 Platinum\Supports" or whatever your directory is.
 

A program that extracts textures and views 3D Models from the RCT3 game files or custom content.
Originally made by Jonathan Wilson

This is a .txt document that enables a small collection of pre-named peeps to roam your park files permanently! No more having to track down a peep to rename them every time you need to remove the UI or enable a cheat after every bootup - that peep will be in your park with its name every time you open and close the game.
To install, extract the Cheat Group .txt doc to Documents/RCT3/Peeps and give the game a couple of play cycles for it to work. As long as you have peeps in your park, you're good to go.
EDIT: The peep isn't ALWAYS in your game on bootup. Sometimes they are, sometimes they aren't. The peep will eventually enter your park as long as it's open and has something to attract them in, but the amount of time it takes for this to happen is random. YMMV
The following peep names are included, remove or change if you would like to ignore a cheat:
Originally created by disneyguy100

Back in August 2004, a couple months before the release of RollerCoaster Tycoon 3, screenshots of the menu have been unveiled on IGN, showcasing what appears to be an attract mode reminiscent of RollerCoaster Tycoon 1 and 2. When RCT3 became playable to the general public in pressed demo discs in September that year, the main menu played a familiar, catchy tune that has been the default overworld theme ever since, complete with the same video FMV.

Here's the FMV in action in a pre-release build of RollerCoaster Tycoon 3.
 
Come November 2004 with the full game out in stores, and fans were disappointed that the attract mode FMV was replaced with a generic slideshow and many felt that this decision marked the beginning of the downfall.

 
This download serves to restore the functionality of an element that was removed from RCT3 prior to release. However, I had to remove the "Summer Air" audio from the videos so they do not overlap with the music that plays within the main menu separately.
This download is compatible with all versions of RollerCoaster Tycoon 3. Instructions for use appear in the readme file.

This is an older outdated version of Sketchup that works with the plugins and importer for RollerCoaster Tycoon 3.
Exact version is Sketchup 8.0.16846.

Plugins for Sketchup to use for creating and important custom scenery into RollerCoaster Tycoon 3.
These plugins include the ASE Exporter and the RCT3 Floor/Placements for Sketchup.

An addon for Blender that allows you to export models from Blender to RollerCoaster Tycoon 3.
Created by shadowdragon.

This tool allows you to import custom scenery into RollerCoaster Tycoon 3.

This tool allows you to clean up and reduce lag and crashes in your RCT3 parks. It also gives you a complete list of custom scenery used in the park.