RollerCoaster Tycoon

This is the incomplete shyguy's Main Street, including the image pack for use with shyguy's billboard shelves in the Main Street Set 4.

This is Water World, Mr. Wonder's second major park.

This is Circus Center by itself, for those with slower computers.

This is Expo 3000 by itself, for those with slower computers. It includes the new Transport Center.

From the other major timeline park I'm planning on doing, King Kobra opened at Forest Frontiers in 1982 and was, along with Six Flags Darien Lake's Viper, the very first roller coaster in the world to feature 5 inversions. In order, the inversions are:
Vertical loop
Batwing
Double corkscrew
King Kobra thrilled riders until 1999 when it was rather brutally retired by Paramount. The remaining spare parts were used on Valleyfair's Corkscrew, and the land the ride once occupied was used for Top Gun: The Ride (now Afterburner), a B&M Floorless that shares a layout with Scream at SFMM.
 
CS you will need:
Maylene's Classic Corkscrew
JCat's Steelworx

The east side of Wonder World, which includes Expo 3000 and Circus Center. You'll need the Expo 3000 and Circus Center cs sets. (possibly others)

The west side of Wonder World, which includes Alpine Village and Catfish Cove. You'll need the Alpine Village and Catfish Cove cs sets. (possibly others)

This is the first phase of Wonder World, before any custom scenery was used.

Based off this page from the Theme Park Fanon wiki, this is Six Flags Indiana as it appears in 2018, the year before SF randomly drops the ball on what is essentially an elite park for no reason at all. New for 2018 is Total Mayhem, an S&S Free Spin located near Apocalypse.
 
You're going to need the following CS and CTRs:
Six Flags Entrance (IDK who made it sadly)
Nightflight CTR (again, no clue who made it)
JCat's Steelworx
Moby's Steel Jungle
Sanba Balloon
Red Baron
SpaceShot and TurboDrop (maybe by ImagineerJohn? I forget who made them)
That one waterpark CS set that has the tipping bucket (forgot the name)
ATH Catwalks
SafariJ's Arrow Supports
 
And you need Soaked and Wild to open the park. If you have all those, enjoy!

This set contains wooden beams, posts, and braces, log posts and walls, stair covers and other odds 'n ends. This set works well with the Billboard Inserts Set.

This set includes floors, wooden path and pool covers, planter covers, stair covers, wood railings, tropical metal roofs, shutters, slide supports, clapboard walls, windows, and more.

To take the description from another source:
Edit your RCT1 saved games in a new way! You can design new scenarios, generate random terrain maps, modify the research items, change vehicles, etc, etc, etc! This is not a "trainer" - it works only on saved SV4 and SC4 files. You should keep a copy of your original files in case the edits result in RCT not working properly. It is intended primarily for Loopy Landscapes. You will need the Drexler patch for many of the edits to be usable in RCT.

An effect pack containing some effects with colored smoke aimed to use in the daytime. Created by wolfpaw.

An effect pack created for a Rio show that someone had requested. Created by wolfpaw.

The effect pack used to create the show 'Speakeasy'. Created by wolfpaw.

The first (and only) volume of a realistic pyro crafting competition that was held on vPyro. This pack contains all the submitted and winning effects. Effects created by shadowdragons, wolfpaw, Kris, and JBpyrofan.

All effects from the first phase of Ilyxr Dynamics. Effects originally created by AT_Mad.

All effects from the second phase of Ilyxr Dynamics. Effects originally created by AT_Mad.

All effects from the third phase of Ilyxr Dynamics. Effects originally created by AT_Mad and n7.

All effects from the fourth phase of Ilyxr Dynamics. Effects originally created by n7.

All effects from the fifth phase of Ilyxr Dynamics. Effects originally created by n7.

All effects from the sixth and final phase of Ilyxr Dynamics. Effects originally created by n7.

New set of planters features stone path curbs and walls, fancy metal railings, modern and wooden planters, and more.
 

Create diagonal and curved pathways with this set. Contains path edges, railings, terrain covers, and flowers.

This pack contains a variety of effects to use in your RollerCoaster Tycoon 3 shows. Install the firework effects in your fireworks folder and the laser effects in your lasers folder.