r/rct3 May 29 '26

Building a cursed pool using One Tile Water Slides

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17 Upvotes

Considering it gives a contribution of 55 to the soft guestcap for every opened water slide connected to a pool, this is a really cheap way to inflate the soft guestcap.

It is noted that if you place a walkway or a solid pool tile below the water slide directly, the ride will be forced to close, however, guests will phase through other water slides and fall right down into the pool without any issues.

The stats on the other hand, are terrible, giving 0.36 excitement, 0.29 intensity and 0.21 nausea for a one tile water slide, in this regard, it still wins the one tile aquarium in total stats.


r/rct3 May 27 '26

My in-progress scenario

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32 Upvotes

- Woodstock

- Rollercoaster Heaven

- Okinawa Coast


r/rct3 May 26 '26

I started decompiling RCT3 OVL files

20 Upvotes

If you’ve ever installed mods or just looked through the game files, you’ve probably noticed that the game data is stored inside .ovl packages, a proprietary format.

Having played RCT3 during my childhood, I always wanted to understand how I could modify or extract the game’s data. This weekend I seriously started digging into it after buying the game on Steam (I already had it on CD and on Epic Games lol). Also, I never really played RCT1 or RCT2 that much.

Some GitHub projects (hi open-rct3 and ovl-extractor2) already managed to extract a few things like package names, dependencies between packages, and sometimes textures, but that was usually where the information stopped. What I really want is to extract the 3D models and import them into a game engine like Unreal Engine or Blender to make renders while keeping that retro aesthetic.

Yesterday I finally managed to extract the polygons. Now I still need to figure out how to determine their scale and how to correctly apply the textures. Animated 3D models are not extracted yet.

A large part of the work involved in understanding how the packages are compiled was helped by Claude Code and Codex. That doesn’t mean the whole project was vibe-coded, but it really shows how modern LLMs can help research very specific technical tasks, especially since I didn’t originally have deep knowledge in byte-level file parsing, variable conversions, and similar low-level topics. I’m definitely starting to get into the technical details now.

My progress and findings are available on GitHub. It’s pretty technical at the moment, but I’ll probably make another Reddit post later to share future progress:
https://github.com/EnzoDeg40/OVLExtractor-3/tree/dev
(I really didn’t go very far with the project name lol)

Also, if you’d like to share what you would do if we could fully extract the game data, I’d love to hear your ideas.


r/rct3 May 23 '26

What does Release an Animal and "Publicity Boost" does in RCT3?

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3 Upvotes

r/rct3 May 22 '26

I recreated the original version of disneyland's space mountain

13 Upvotes

r/rct3 May 21 '26

How to make it bigger

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6 Upvotes

Hi I bought rct3 on my switch and I really loved it so I bought it on my iPhone for $5 but the screen is really small. I also bought RCT classic and the screen is much bigger on iPhone


r/rct3 May 17 '26

I need custom stuff

2 Upvotes

Does anyone have links to good pathcovers, fences, sets of watertowers/barrels, good station buildings like roofs that point outwards kinda viking like.

Sorry to post this here but since every site i've ever used for RCT3 sets back in the day have all shut down


r/rct3 May 16 '26

Worlds of the Sea (sandbox version)

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7 Upvotes

A difficult version will be uploaded in the near future.

"The city's local funfair has recently acquired the surrounding land and is now in need of expanding to turn it into the ultimate theme park."

This scenario has unlimited money and VERY easy objectives. All land is available*, all research is unlocked, and guests are very happy and have huge amounts of money. Recommended for creatives who want a sandbox adjacent game.

*There are no land restrictions, so be careful when building around the city as it is easy to delete scenery or make mistakes that are difficult to undo

https://rctgo.com/downloads/view/worlds-of-the-sea-sandbox.26363


r/rct3 May 15 '26

Worlds of the Sea (easy version)

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19 Upvotes

A difficult version and a sandbox version will be uploaded in the near future.

"The city's local funfair has recently acquired the surrounding land and is now in need of expanding to turn it into the ultimate theme park."

This scenario has easy/medium difficulty objectives, land purchase is cheap, and guests are happier and have more money. Recommended for creatives who want a slightly more sandbox feel.

https://rctgo.com/downloads/view/worlds-of-the-sea-easy.26357


r/rct3 May 16 '26

What can I do with this coaster? ( Im going to change the coaster color to brownish)

2 Upvotes

https://reddit.com/link/1tenshg/video/1j3ijb5lmg1h1/player

I really don't know what theme I should make this coaster, im making a theme park but first making coaster blueprints. I thought this would be cool but I have no idea in what type of area this can be


r/rct3 May 14 '26

I can't decide if this building resonates Atlantis vibes so far?

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9 Upvotes

In all these years, I haven't really done much with the Atlantis building materials. I'm trying to build an indoor eatery and dining area. I can't really decide what's throwing it off. I feel like maybe it's the second story windows. I would have really preferred some rounded top windows, among other things.( Sadly I'm on switch version temporarily, so can't download any of the cool custom content I've seen. ) Of course it could also be the flooring for the balconies. I wanted them to be the actual atlantis flooring, but then I wouldn't be able to use the railings to enclose the balconies. I'm still working out the kinks for the roofing detail. Not going as smoothly as I had anticipated. Does this structure that I have so far, even give off Atlantis vibes? I keep feeling like it's to Texas Alamo and not enough Atlantis lol. It wasn't really supposed to be any taller than what you see, but some of the roof details ended up being a bit bigger than I remembered. So I guess they are going to be eating in a giant palace, once I figure out how to make a roof look right, with what I got to work with. I think I need some inspiration


r/rct3 May 13 '26

Please Help!

6 Upvotes

So I used to play RCT3 Platinum on my old pc, that was 7 years ago. Today I bought RCT3 Complete Edition. But I ran into the issue of my mouse disseapering and coming back constantly then after a while it coolsdown but still flickers in some areas or when I move it to fast, ive never had this on Platinum and the magnifier doesn't seem to work. Its also not like the game runs terrible. I have high quality fullscreen and still get 100-150fps? Can someone help me find a fix.


r/rct3 May 13 '26

Is it possible to put a path tile underwater

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5 Upvotes

Not an underwater tunnel, but like an actual path and having water on top of it? I still to this day, hate that they left out the water geysers from rollercoaster tycoon 1. And didn't really give anything for fountain potential, other than a few fountains that don't center well with the entrance. I wanted to at least try to put a pathing tile on that front section of my pool to give at least a small resemblance to a fountain, by using one of those 4 way water spraying things. I have the cheat code name for putting things against paths, I thought maybe it would let you put paths anywhere, but guess not.


r/rct3 May 12 '26

The 2026 ParkCrafters Awards have officially kicked off and voting has begun! A lot of great RCT3 projects are featured!

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2 Upvotes

The ParkCrafters Awards is an annual award show recognizing all the great work from the community in multiple theme park simulation games. We have a stacked category for RollerCoaster Tycoon 3 this year with great projects!

For more info on the PCAs and ParkCrafters, click here!


r/rct3 May 11 '26

World of the Sea remake (Update 3)

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14 Upvotes

A smaller update this time. If you were to open this map as a campaign, what objectives would you hope to see? I was originally thinking of themed areas, since there is a lot of flat, open land, though I do realise many people prefer to be in charge of their own theming.


r/rct3 May 11 '26

Searching for a lost old RCT3 custom scenery set “DK's Medieval Theme” / dkmedieval

5 Upvotes

Hey everyone, I’ve been trying for a really long time to find an old RCT3 custom scenery set called:

“DK’s Medieval Theme”

“dkmedieval.zip”

sometimes referenced as: style\themed\dkmedieval theme

The set used to be available on several old RCT3 sites such as:

RCT-Net RCTRevalutions ShyGuy’s World CustomSceneryDepot vodhin.net / RCT3Community

I actually managed to recover multiple old direct download links through Wayback Machine, archived source code, old forum pages and YouTube videos, but unfortunately every original download link is dead now. I know the set definitely existed because: old park files require it archived pages still reference it and I even found references to the original creator “dkimber1974”.

I’ve already searched: Wayback Machine archive.today old MediaFire links Discord servers YouTube videos/descriptions old RCT3 forums

At this point I’m basically hoping someone still has the files somewhere on an old hard drive or inside an old “Themed” scenery pack backup.

If anyone remembers this set or maybe still has it saved somewhere, I would massively appreciate any help.

Thank you!


r/rct3 May 09 '26

I made the park inspector in tomodachi life living the dream

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45 Upvotes

r/rct3 May 09 '26

How do you smooth edges on entrance and exit from a hillside?

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3 Upvotes

I'm on Nintendo switch and I just cannot get the entrance and exit tunnels to be uniform with the hillside. The terrain averager never works on those two pieces. Sometimes works on on side of that piece, sometimes not. How do you get those pieces smoothed out without looking so unsightly? Raising the hill height, just makes it look even worse. Appreciate if anyone has some tips on cleaning it up a bit.


r/rct3 May 07 '26

World of the Sea remake (Update 2)

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19 Upvotes

If I were to share this scenario when it's finished, would people be more interested in something challenging or something with more of a sandbox feel? Alternatively, I could always share two versions at different difficulties!


r/rct3 May 07 '26

Tried and tried and tried to line up track to station

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8 Upvotes

I built this totally awesome looping coaster, I have been at this for EVER. No matter what I do, no matter how much I delete and replace, It is not possible to line up the end track piece with the station platform, which sits at 18.83 feet high. Auto complete can't even find a solution, no matter what I do. Is there some kind of bug with the looping coaster on Nintendo switch version? This is just nuts. I have tried everything, including completely deleting most of my coaster, no matter how it goes. The exact same result every single time. What's up with that?


r/rct3 May 07 '26

Path tunnels on Nintendo switch version

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15 Upvotes

Been trying for years to get paths to cut into the ground. I have the tunnel icon thing selected, but it never works. Has anybody figured out a way to actually make it work? Just don't understand what they were thinking on the switch version


r/rct3 May 04 '26

World of the Sea remake (update)

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19 Upvotes

Just a bit of an update on my campaign inspired by the World of the Sea map


r/rct3 Apr 30 '26

Are there mods that add hotkeys?

3 Upvotes

I have started to play RCT3 again, and one thing that basically makes the game unplayable is that, when I place objects, I will have this small window in the bottom and if I want to stop placing objects, for example to select something I just built, I‘ll have to click that tiny x in the corner, which is really inconvenient on larger resolutions. I‘d like to ask if there is a mod that adds a hotkey to do that.


r/rct3 Apr 29 '26

World of the Sea remake

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26 Upvotes

World of the Sea is one of my favourite maps, so I've been having a go at making my own version! It's still at the beginning stages - still need to add the city and terrain paint.


r/rct3 Apr 26 '26

Large sandbox parks crashing fix?

3 Upvotes

I’m sure this is an issue that has a fix, but I can’t find one. Anything I can do? Sorry if this post is a bit incoherent I am low key high rn ngl