- Simulation
- Early Access
Game
Ultimate Coaster X
Ultimate Coaster X is a free roller coaster simulator built with simplicity and utility in mind. The in-game roller coaster and world editors allow you to create and experience rides of many types.
Ultimate Coaster X is a free roller coaster simulator built with simplicity and utility in mind. The in-game roller coaster and world editors allow you to create and experience rides of many types.
About Ultimate Coaster X
- Released
- March 2019
- Platforms
- PC (Microsoft Windows)
Where to get it
Release, studio and platform data from IGDB. Store links go to the sellers, not to us. We do not sell games and we do not host files.
Browse everything
Sorted, filterable and paged. Every link goes to the author’s own download.
From the developers
Official announcements, newest first. Posted on Steam.
- Mods indexed
- 245
- Versions
- 0
- Newest tracked
- none yet
- Most disruptive update
- No breakage data for this game
of 1.4k on Steam Workshop
Most downloaded
Measured from the source's own counts, summed across every release.
- B&M Hypercoasteruhhhhhhh hyper.4.5k downloads
- Scenic B&M Hyper CoasterTake a ride on this scenic B&M Hyper Coaster! Max Speed - 124km/h | 77mph Height - 65m | 214ft Number of drops - 143.6k downloads
- it wants ur cheeseIt wants your cheese!!! Can you stop it before it snatches your cheese 3 times? Please Rate!1.6k downloads
- Heidi - custom GCI terrain coasterThis was my first UCX coaster \o/1.6k downloads
- 3 coasters parkthere are in fact 3 coasters in this park1.1k downloads
- LakeLandsHello everyone, This is my first park with my first few coasters I've build in this game. LakeLands is a small park with 8 coasters. -Fermur (Intamin Looping Coaster) (First Coaster) -Titan (B&M Hyper Coaster) -Rush (Intamin Launche Coaster) -Timbur (GCI Woodie) -Leaf lasher (Kiddie Coaster) -Iro...1.1k downloads
- Detailed Ka Recreation950 downloads
- Low RiderA copperhead strike-inspired Mack multi-launch, including a terrain that surrounds the coaster.911 downloads
- Realistic Floorless CoasterI wanted to create a realistic B@M Floorless to see how smooth i could get the layout of a B@M floorless to be. Here's what i came up with.735 downloads
- Deep Water Dive694 downloads
- Steel VengeanceStill a work in progress please dont hate627 downloads
- forested rmc590 downloads
- Iron Vengeance579 downloads
- The smilerThe smiler and oblivion from alton towers566 downloads
- Custom wooden coaster565 downloads
- Fighter Jet531 downloads
- High Fall512 downloads
- Speed DragonAn Intamin multi launch blitz coaster with custom layout. -Hyper Realistic-507 downloads
- Hailstorm - S&S Air Launch CoasterSTATS Height: 67m / 219.8ft Drop: 66m / 216.55ft Angle: 90° Length: 1318m / 4324.15ft (4280ft w/o station, lift and brakes) Top Speed: 137km/h / 85.13mph Pacing: 92.04ft/sec / 28.05m/s Duration: 1m40s / 100s (46.5s excluding brakes) Inversions: 3 (Tilted Dive Loop, 400° Roll, Heartline Roll) Maxi...500 downloads
- son of beast rmc"lets just keep on going"462 downloads
- Center Adventura446 downloads
- Beyond vertical 1First upload so don't expect much from it... Feedback would be nice404 downloads
- Vekoma Boomerang382 downloads
- Blue Firethis is the BLUE FIRE megacoaster from the Europapark. this is the 1st coaster i made in this game sooo XD375 downloads
Browse all 245 Ultimate Coaster X mods Sortable by downloads, rating and date.
More early access games see all
Why Ultimate Coaster X mods break
A mod is compiled against one version of a game. When the game updates, anything that reached into the parts that moved stops working, and it usually stops working silently rather than with a message that explains itself.
That is what the table above counts. It is not a guess: each row is a mod the community has reported as broken by that specific release. The number is a fair measure of how disruptive an update was, and it is the reason people delay updating a game they have modded heavily.
Common questions
Does IndexGG host Ultimate Coaster X mods?
No, and it never will. Every download link points at the author's own page on Nexus, GitHub, CurseForge or wherever they published it. We index the ecosystem; the files stay with the people who made them.
Where does the compatibility data come from?
From the communities that maintain it in the open, not from guesswork. Each claim carries how it is known, so a reported breakage is never presented as though the author said it.
Why is a mod listed as broken when it works for me?
Compatibility depends on your exact game version and the rest of your load order. A mod marked as broken in one release may work fine on an older one, which is exactly why the version is recorded next to the claim rather than a bare yes or no.





