RollerCoaster Tycoon

Jack Evil Tunnel: 1 object, unlit texture. Can be used for a thrill coaster scenery piece.
Author: coasterfreak

Kustom Koncert Stage set: This set was made years ago featuring the band KISS. It has tons of stage and band equipment, sound booth, speakers, lighting (rigging) galore, monitors(billboards) Even has cut outs of all the band members. Gene Simmons has 2 cut outs, one he is blowing fire! Nice addition to any park that wants to 'jazz' up there concerts!
Author: coasterfreak

Another great stage set with a combination of lights that are colorable! Found in game under "Lights and Beams."
Author: coasterfreak

Mario Brothers: Nice little set to add to your gaming parks themed around Mario Brothers. This set has a quite a bit of animated textured objects, Mario, Luigi, Princess, and Bowser are faded cut outs. Each character has about 6-8 different positions, and animated. This set also comes with a park entrance, and 2 shop/stall covers. Different size warp tunnels, coins, one non animated, the other animated.2 different path lights, bench, and a trash bin.
Author: Coasterfreak

Moving Comets: Quick texture animation set, great for backgrounds for you Space themed areas and parks! This is one Comet, that has different speed settings and can be used straight or diagonal. Unlit texture used!
Author: Coasterfreak

This set gives you a wide variety of spiders posing in different positions, and 2 different choice of webs. There are horizontal and Vertical spiders and webs. The spiders are not fully modeled pieces, they are flat, 2D pieces.
Author: Coasterfreak

This little set comes with the items needed to make a station platform. There are also 'road' pieces for that add touch.
Author: Coasterfreak

Fireball Cso with classic light animation. Place over In-Game ring of fire flat ride, This is a must have for any carnival or fair setup.

Cso made by: Tim Henson and Woody Lipkins

My Spaceship Earth CS set. I took two models from the Sketchup 3D warehouse, heavily modified them, and imported them. Thanks to the original model makers!
Author: Guest

A selection of 7 various positioned rugs/carpets, and tapestries. Cso for RCT3. This is a test set with 60 objects. Please read the text files before installing. Thank you.
Author: Gravquian

A small yet versatile set of scenery covers patterned on the paths at WDW Orlando’s Haunted Mansion.

Placement to center tile and to quarter tile.  Viewable from beneath.  Not colorable.

Created by eeZee

An easy to use, four piece asphalt path cover set with a clean, nicely textured, well aged appearance.

Viewable from beneath.  Placement to tile edge only.  Not colorable.

Created by Awesome Ninja/Dr Drew

The set contains the following pieces:

Ceiling Light
Ceiling Light (Small Radius)
Ceiling Slowflash (Ride Event)
Floor Light
Floor Light (Small Radius)
Floor Slowflash (Ride Event)
Lightning Gen (Ride Event)
Lightning Gen Ceiling (Ride Event)
Reveal (Ride Event)
Spotlight (Ride Event)
Tracklights Left
Tracklights Right
Wall Light
Wall Light (Small Radius)

Created by DRP

A versatile colorable set with more than 20 pieces.  The square tunnel piece comes with a functional ceiling light.  The metal floor piece is colourable.  The stone floor piece is not.

All pieces place centered to tile edges.  The floor pieces are viewable from beneath.

Created by RCT3DuDe

Comes in 4 colorable textures.

Pieces come in standard and offset, straight and diagonal, full and half.  Placement to center tile and to quarter tile.

Created by IU

A few pieces themed on Disney California Adventure’s Paradise Pier.  The Zephyr ride in the image is a CSO.

Created by Simtanic8

A small billboard construction set.  Floor piece is invisible from beneath.

Created by JDRowlands

A small set of terrain cover pieces.  Viewable from beneath.

Created by ATH

A specialized 5 piece set used as flat track covers for Space Mountain coasters.

Not colorable.

Created by CoasterInc

This set has about 25 pieces which are not colorable.

Created by Stitch59650

Whether your park needs caves or grottos build specifically to your requirements with this extensive cavern set.

More than 100 pieces, a few semi-transparent, all colorable (dark).  Includes two crystal formations.  
Originally created by DRP

A single piece set containing a beautifully detailed reconstruction of the Vogelrok situated in Efteling Park at the entrance of their Vekoma coaster.

Efteling’s Vogelrok is based on Sinbad the Sailor's adventures with his encounter of the famed giant Rok bird.

Comes with a background image resembling Vogelrok clouds for use as a billboard.  Bird appears to be high poly.

Created by 124693739-BN

A fully functional snack machine which can be set like a stall to sell the item of your choice.

Created by CoasterFreak900

Whether they like indoor our outdoor sports now you can offer your guests the last word in fitness with this well made mini set that will enable them to enhance their well-being in your park’s state-of-the-art sporting facility.

Created by Reaver

After placing this single dramatic structure your park guests will enter your park believing they’ve travelled back in time to Imperial Rome!

Created by Coaster-Inc