Conjure custom Rust terrain in minutes export straight to RustEdit…like it's magic

Windows desktop app for Rust map makers. Generate 16-bit island heightmaps, combine seeds, then preview and paint them live in a real 3D in-game view and export a ready-to-open Rust .map (or true 16-bit .raw and .png) to open straight in RustEdit.

It's built around Rust procedural generation, so beaches, slopes, and cliff prefabs feel naturally Rust-like in-game. The map size you select determines the output resolution of your export.

The Crucible Heightmap tool adds another layer to speed up your initial terrain process and increase your creative options.

RustEdit is a community built standalone map editor for Rust developed by k1lly0u. You get full control over terrain, splat, biome, topology, alpha and prefab tools.

With the Crucible Heightmap tool you can quickly import custom terrain that would otherwise take ages to make by hand. Then with the RustEdit proc gen tool you can automatically populate a fully playable map with biomes, monuments, roads, etc. on top of the Crucible Heightmap you created.

Making it faster and easier than ever to unleash more creativity in the map building process.

Start to finish: generate a heightmap in Crucible, export a .map (or .raw), then open it in RustEdit and build (or proc gen) your monuments, roads, and biomes on top. Check the tutorials and demos above for video walkthroughs and guides with more detailed info.

Yes. Crucible Heightmap and a map editor like RustEdit work together, each doing a different job. A heightmap is your map's terrain skeleton: a 16-bit grayscale image where brightness is elevation, so it defines every hill, cliff, beach and ocean floor. Sculpting that by hand takes ages. Crucible generates Rust-tuned terrain for you in minutes and exports a ready-to-open .map (or a .raw heightmap), then you open that in RustEdit and use its tools (or proc gen) to drop monuments, roads, biomes and prefabs on top.

There are other Rust map tools out there too, like RustMapper, but RustEdit is the one I have hands-on experience with. Crucible plus RustEdit takes you from a blank slate to a unique, fully playable custom map, fast.

Yes. Heightmaps and maps you create with Crucible are yours. Use them freely, including commercially: run them on your own servers, share them, or sell them on marketplaces like Codefling or Lone.Design. Your subscription licenses the app itself, not what you make with it.

RustEdit accepts 513×513, 1025×1025, 2049×2049, and 4097×4097 pixel heightmaps. Crucible matches these exactly based on your selected map size, exported as true 16-bit grayscale .raw (or baked into the .map export).

Spin up a local Rust server, load your map onto it, then connect and walk it in-game. I cover the full local hosting setup in this video tutorial.

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Save your exported RustEdit .map file somewhere (I like to create a new folder in my server root called maps), then point the levelurl in your server .bat file to the map file path. The code below shows how to properly update your server .bat for this:

@echo off
:loop

cd /d "C:\Path\To\Your\Server\Folder"

echo Starting server...
RustDedicated.exe -batchmode ^
+server.port 28015 ^
+server.levelurl "file:///C:\Path\To\Your\Maps\yourmap_v1.map" ^
+server.maxplayers 1 ^
+server.hostname "Your Server Name" ^
+server.identity "yourserver" ^
+rcon.port 28016 ^
+rcon.password YOUR_RCON_PASSWORD ^
+rcon.web 1

echo Server stopped. Restarting in 10 seconds...
timeout /t 10

goto loop

What to change:

• cd /d path: the folder your RustDedicated.exe lives in.
• server.levelurl: the full path to your .map file (keep the file:/// prefix).
• server.hostname / server.identity: your server name, and a save-folder name for this server.
• rcon.password: set your own and never share it.

Once it's running, launch Rust, press F1, and type client.connect localhost:28015 to join and walk your map.

Updating a map? Either save each new version under a different name (e.g. yourmap_v2.map) and point server.levelurl at it, or delete the old .map from both places it lives: your server identity folder (...\server\yourserver\) and your Rust client's map cache (C:\Program Files (x86)\Steam\steamapps\common\Rust\maps).

A Windows PC. That's it. Download Crucible, open Crucible Heightmap from the launcher, and subscribe in the launcher's Shop to unlock it.

Mac or Linux? It's a native Windows app, so it won't run on Mac or Linux out of the box. There are likely ways to get it working if you're an avid Mac or Linux user though.

Download Crucible from the download page, or the Download link in the footer. Install it, open Crucible Heightmap from the launcher, and subscribe in its Shop to unlock the app.

Updates happen automatically when you open the app, no reinstalls and no chasing downloads. When a new version is ready you'll get an "update available" prompt on launch, and you can check anytime in Settings.

Checkout, billing, and license keys are all handled by Lemon Squeezy, a trusted payment provider and merchant of record. They process the payment, handle sales tax and VAT, manage recurring billing, and issue and validate your license key.

Your payment details go straight to Lemon Squeezy's secure, PCI-compliant checkout, they're never seen or stored by us. As merchant of record, Lemon Squeezy is also the name on your statement and the party responsible for tax compliance, so you're covered by an established platform rather than a one-person operation handling your card.

Manage it right in the launcher's Account panel: change plan, update your card, cancel or resume. It also runs through the Lemon Squeezy billing portal: crucibleheightmap.drizzza.com/billing, the Manage subscription link in the footer. Log in with the email you bought with and you'll get a one-time login link.

You stay active through the rest of whatever you already paid for, then the launcher stops opening the app. Anything you made stays on your PC.

Changed your mind? If you resume before your billing cycle ends, it's the same subscription with the same license key, nothing breaks. If the subscription fully expires and you buy again later, that's a new order with a brand-new key, and the old one won't work anymore.

Up to 2 Windows PCs per license. Switching rigs? Hit "deactivate" in the launcher on the old one first. That frees the slot, then you can activate on the new PC.

It's in a few places. The launcher's Account panel shows your license key right there. It's also in your purchase receipt email, and on the billing portal at crucibleheightmap.drizzza.com/billing, the Manage subscription link in the footer. Log in with the email you bought with.

Still stuck? Hit me up in Discord.