RollerCoaster Tycoon 3

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.

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.

A variety of effects used in shows from Pyrotechnic Innovations. Created by Melawse.

The complete pack of all effects used by Illuminated Alliance (IA) to create their shows. Various effects created by Sino, Jaron, and wolfpaw.

An LED pack created by Caebecca that was used in various Fyre Teknix shows. Install like how you would install any other firework effects in RollerCoaster Tycoon 3.

This pack contains all the effects that the former company, Eclipse Pyro Productions (EPP), used in their shows.

AD pyro pack number 1 for RollerCoaster Tycoon 3. Install like how you would install all other firework effects!

AD pyro pack number 2 for RollerCoaster Tycoon 3. Install like how you would install all other firework effects!

AD pyro pack number 3 for RollerCoaster Tycoon 3. Install like how you would install all other firework effects!

AD pyro pack number 4 for RollerCoaster Tycoon 3. Install like how you would install all other firework effects!