Jurassic World Evolution 3 Island Generator Guide (2026): Best Slider Settings, Tips & Perfect Map Strategies
What if you could sculpt the perfect Jurassic world before placing a single fence—designing coastlines, carving mountains, choosing biomes, and deciding exactly where your park begins and ends?
That’s exactly what the Island Generator in Jurassic World Evolution 3 allows you to do—and after multiple post-launch updates, it’s now one of the most powerful creative tools in the entire game.
This guide has been fully updated for January 2026, incorporating all major improvements from Update 1.2.0 and beyond. Below, you’ll learn:
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What’s new in the Island Generator
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How every slider works (including the new Beaches slider)
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The best slider presets for different park styles
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Advanced techniques using Island DNA codes, the Obstructions heatmap, and pathing tools
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Pro planning tips for performance, realism, and gameplay balance
Let’s break down how to build the perfect custom map in Jurassic World Evolution 3.
🆕 What’s New? Major Island Generator Updates (Patch 1.2.0)
Since launch, the Island Generator has received several game-changing upgrades that dramatically expand creative freedom.
Key New Features You Should Be Using
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New Biome Options
You’re no longer locked to tropical maps. Islands can now generate as Temperate, Desert, or Mediterranean, each with unique vegetation, terrain feel, and atmosphere. -
The Beaches Slider
A brand-new slider lets you control how much of your coastline becomes sandy beaches versus rocky cliffs—perfect for lagoon builds or harsh volcanic shores. -
Expanded Building Limits
Terrain editing and building placement now work right up to the water’s edge, removing the old invisible buffer zone. Scenery can also be placed anywhere on the map. -
New “Obstructions” Heatmap
Found in the environment menu, this heatmap shows where dinosaurs, guests, and vehicles can move, making it essential for functional terrain design. -
Performance & Console Improvements
The Override Performance Limits option introduced in Update 1.1 has been further refined, allowing more complex parks before hitting the complexity ceiling—especially important for console players.
🎛️ The Island Generator Explained: All Sliders (Old & New)
Understanding each slider is key to shaping your island properly. The original five sliders remain, now joined by a powerful newcomer.
| Slider | What It Controls | Low Setting Effect | High Setting Effect |
|---|---|---|---|
| Shape | Overall landmass layout | Smaller islands and archipelagos | Large, cohesive islands with complex coastlines |
| Terrain | Base elevation and roughness | Flat, builder-friendly plains | Hills, rocky outcrops, varied elevation |
| Trees | Forest density | Open spaces for megastructures | Dense jungles and immersive foliage |
| Water | Lakes, rivers, inland water | More usable land | Natural rivers and aquatic barriers |
| Mountain | Height and frequency of peaks | Gentle landscapes | Dramatic cliffs and vertical builds |
| Beaches (NEW) | Sandy coastline prominence | Rocky shores and steep cliffs | Wide beaches and shallow lagoons |
🏝️ Best Slider Settings for Every Park Style (2026 Edition)
Use these updated presets as starting points for your custom island builds.
| Park Vision | Recommended Sliders | Strategic Advantage & Biome Tip |
|---|---|---|
| Sprawling Mega-Park | Shape: High, Terrain: Low, Mountains: Low, Water: Medium, Trees: Low, Beaches: Low | Maximum flat land for massive enclosures and plazas. Temperate or Desert biomes create clean, modern layouts. |
| Cinematic Adventure Park | Shape: Med, Terrain: High, Mountains: High, Water: High, Trees: Med, Beaches: High | Ideal for tour routes, cliffs, waterfalls, and dramatic views. Mediterranean biomes shine with beaches. |
| Authentic Nature Reserve | Shape: Med, Terrain: Med, Mountains: Low, Water: High, Trees: High, Beaches: Med | Natural enclosures with organic barriers. Tropical for classic Jurassic vibes, Temperate for redwood forests. |
| Challenging Mountain Zoo | Shape: Low, Terrain: High, Mountains: High, Water: Low, Trees: Low, Beaches: Low | A vertical puzzle for expert builders. Desert biome creates a harsh “Site B” aesthetic. |
⚙️ Advanced Island Generator Techniques (2026)
Once your island is generated, the real magic begins.
1. Use Island DNA Codes & the Blueprints Menu
Every island has a unique Island DNA Code tied to its slider values.
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Share your best islands with the community
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Import other players’ landscapes instantly
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Combine custom islands with the Blueprints Menu (Update 1.2.0) to quickly place saved buildings, plazas, and attractions
This pairing dramatically speeds up large-scale park design.
2. Refine Terrain with the Obstructions Heatmap
This is the most important tool added since launch.
How to use it effectively:
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Activate the heatmap in Environment Tools
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Sculpt rivers, valleys, and waterfalls while ensuring tour vehicle paths remain accessible (shown in green)
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Flatten build zones without accidentally trapping dinosaurs
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Create elevation-based exhibit barriers and confirm dinos can’t cross them
This ensures your island is playable, not just beautiful.
3. Master Pathing with New Shortcuts
Paths are the backbone of park flow.
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Use Copy Path Style (Update 1.2.0) to instantly match colors and patterns
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Widen paths near hotels, transport hubs, and viewing galleries
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Avoid narrow bottlenecks in high-traffic guest areas
Good path planning prevents overcrowding and boosts park rating.
💡 Pro Tips for Smarter Island Planning in 2026
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Design for Dinosaur Families
With improved juvenile social behaviors, enclosures should include flat nesting areas, accessible water, and varied elevation. -
Balance Beauty with Logistics
Always plan staff paths, ranger access, and guest routes early using the Obstructions heatmap. -
Optimize Performance
The complexity meter still matters—especially on console. Use Override Performance Limits carefully, and avoid maxing every slider at once for smoother gameplay.
🏁 Conclusion: Your World, Your Rules
The Island Generator in Jurassic World Evolution 3 has evolved from a strong launch feature into a truly limitless world-building system.
With new biomes, the Beaches slider, expanded building zones, Island DNA sharing, and the Obstructions heatmap, you now have complete control over how your park looks, plays, and performs.
There is no single “best” island—only the one that fits your vision.
Experiment freely. Save your DNA codes. Share your creations.
Your perfect prehistoric world is only a few slider tweaks away.
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