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Watch trailer on Steam ↗Coaster Clash 2k99 - Roller Coaster Defense
D4Y · Published by D4YmakesGames
1 user reviews — 100% positive (1 reviews)
Last updated 28 Sept 2026
Coaster Clash 2k99 is a unique Coaster-Builder/Tower Defense/Bullet Heaven hybrid. Build custom roller coasters, ride them in first-person, defend your scrap from enemy hordes, and see just how fast you can gain XP from your coasters.
£8.50
Lowest price we've ever recorded
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Price history
Indie, Simulation, Strategy, Casual · 2025 · More £5 - £15 games
Experience the thrill of building custom roller coasters and defending them in real-time battles. Navigate the twists and turns as you ride your creation in first-person, all while fending off enemy attacks in this unique simulation-strategy game from D4Y.
About this game
Coaster Clash 2k99 is a Coaster-Builder/Tower Defense/Bullet Heaven hybrid with a genuinely endless amount of depth, and a skill ceiling that I currently don't know how high it reaches.
In CC2k99 you build roller coasters, ride them, defend your scrap, and see how efficiently your coasters can get XP.
Whose going to be first to level 1,000? Whose going to have the highest XP/hour in survival mode?
Key Features
Build Your Dream Coaster 🎢
Free-form track building - Create loops, corkscrews, hills, and drops with an extremely easy coaster builder.
Physics-based simulation - Watch your carts realistically navigate the track you've built
First-person ride mode - Experience your coaster creations from the rider's perspective
Multi-track support - Build and manage multiple rollercoasters simultaneously
Strategic Tower Defense Combat
Three weapon types: Standard projectiles, piercing spikes, and devastating laser systems
Dynamic enemy encounters - Face off increasingly challenging enemies with unique behaviors and abilities, at your own pace.
Upgrade system - Upgrade your weapons and unlock new projectile types that allow you to get more XP, and destroy more enemies.
Real-time combat - Fast-paced action with extremely optimized collision detection and mesh management for smooth performance, even with 10,000+ enemies on screen.
Two Distinct Game Modes
Survival Mode
Start with limited resources and basic weapons
Earn scrap metal from defeated enemies to fund upgrades
Control your own progression - You determine how fast you gain experience and unlock new abilities
Progress through increasingly difficult encounters
Unlock new weapons and abilities at your own pace
Save your progress across multiple save slots
Free Build Mode
Unlimited resources and all upgrades unlocked
Perfect for experimenting with track designs
Focus purely on creativity without resource constraints
Ideal for testing complex coaster layouts
More Features
Intelligent enemy AI - Enemies path around obstacles and coaster supports
Particle effects system - Visual feedback for every collision and explosion
Player-controlled progression - Decide when to engage enemies and how quickly to advance
Comprehensive save system - Multiple save slots for different gameplay sessions
Intuitive Controls & Customization
3D camera system - Orbit, zoom, and pan to get the perfect view of your creation
Point-and-click building - Simple, accessible track construction interface
Fully customizable UI - Arrange interface panels to match your preferred layout
Real-time adjustments - Modify your coaster and defenses on-the-fly during combat
Perfect For
Tower defense enthusiasts looking for a fresh take on the genre
Creative builders who enjoy designing complex 3D structures
Action game fans who want strategic depth with fast-paced combat
Rollercoaster simulation lovers seeking a unique twist on the formula
System Requirements
Will my PC run this? →Minimum
- OS: 7
- Processor: Intel i3-8100 / AMD Ryzen 3 2200G
- Memory: 1 GB RAM
- Graphics: Intel UHD 630 / AMD Vega 8 / GTX 1050
- Storage: 20 MB available space
Recommended
- OS: 10
- Processor: Intel i5-10400 / AMD Ryzen 5 3600
- Memory: 1 GB RAM
- Graphics: GTX 1660 / RX 580
- Storage: 20 MB available space
Supported Languages
Latest news
Patch NotesOfficial
1.0.9.1 - Tunnels PT 2 + Performance Optimizations
Additions Tunnels PT 2 - Tunnels can now be generated with terrain forming around them. This means no more seeing the terrain and then going straight through it. You can enable this any time by going to Tunnel Settings in the Track Controls and pressing "Remove Terrain in Tunnel", depending on your set resolution for the map settings, this could take a few seconds. Loading Indicator added for Map terrain changes Performance Optimizations Multiple performance optimizations made to try and help stabilize performance, performance tips added in the main menu for things players can do on their side. Still trying to make it as performant as possible.Read full article on Community Announcements (mattd4y)Patch NotesOfficial
1.0.9 - Complete Terrain System Overhaul + Tunnels!
Additions Complete Terrain System Overhaul - The entire terrain generation system has been rebuilt from the ground up! You now have full control over creating whatever terrain you want. Terrains are save slot specific, with the default terrain shown when opening cc2k99 being your autosave freebuild slot. Tunnels Added! - Coasters can now go underground! Tunnels automatically integrate with the new terrain system, weapons are disabled when inside of a tunnel. Inverted Support Pillars - Support structures now work properly with inverted coaster sections! Advanced Noise Generation Controls - Fine-tune your terrain with full on noise control, including amplitude, frequency, algorithm types, and boundary control GPU-Accelerated Terrain Generation - Moved terrain vertex generation to the GPU for dramatically improved performance. Scenery Store System - Complete overhaul of scenery management with persistent storage. Smart Height Updates - By default, scenery is set to "Update Heights" mode, preserving existing scenery positions while adjusting to new terrain heights. Switch to "Regenerate" mode to create entirely new scenery layouts and positions. Increased tree count by 5x for more realistic environments Added multiple color variations for enhanced visual diversity Added limits to how many can spawn inside of the selected grid size, up to 200x200 New scenery controls added Optimizations GPU-accelerated terrain vertex generation for fast rendering of terrain changes Optimized laser weapon performance with large pillar counts Improved camera zoom limits with first-person mode handling Known Issues Ground plane laser collision temporarily disabled while integrating with new terrain system - fix coming soon!Read full article on Community Announcements (mattd4y)Patch NotesOfficial
1.0.8 - Control Panel's Hotkeys Added! + Terrain/Stats Controls styling change
Additions Hotkeys added for opening and closing control panels! These are the numbers 1 - 9 for the Top Left row of controls if CAPS-LOCK is OFF, and then 1 - 9 for the Bottom-Right row of controls if CAPS-LOCK is ON Styling updates for the terrain controls panel to have it be more consistent with the rest of our control panels, and a layout change for the stats panel, so you no longer have to select which stats tabs to view, they are both shown automatically now. Icons for Health and Upgrades addedRead full article on Community Announcements (mattd4y)Patch NotesOfficial
1.0.7 - Inline Twisting User Interface + Direction Control!
Additions Added a User Interface for inline twisting points your selected coaster. This makes it much, much easier adjust your inline twists. New Inline-Twisting UI can be found in the "Tracks" panel. Also added the ability to change the direction each twist! The direction can be changed by pressing the clockwise or counterclockwise buttons that appear for points that have inline twisting enabled. Bug Fixes Fixed issues with adding an inline twist causing loops placed after to not be able to invert inside of it, this is now fixed. Loops and other elements should work perfectly fine with inline twisting. Misc 1 week anniversary of 1.0.0 being launched! Already made a ton of improvements over the past 7 updates. Can't wait to see what 100 more look like.Read full article on Community Announcements (mattd4y)Patch NotesOfficial
1.0.6 - In-line Twisting Added! (point specific coaster inversion)
Additions You can now create in-line twist! When creating a coaster, if you press T, and then place a point, the coaster will do a half-inline twist from the previously placed point to the one you have placed. The rest of the coaster path will be inverted until you in-line twist back up. Doing two of these back to back will make what is considered an inline-twist element when it comes to real life coasters. This unlocks new types of possible elements, like zero-g rolls, roll overs, Immelmann loops, dive drops, and more. In editing mode, if you select a point, pressing T will half-inline twist at that point. Previously set half-inline twist points for your coaster will be preserved when saving and loading a game.Read full article on Community Announcements (mattd4y)
