Image to CyberGrind Converter: The Real 2026 Guide to Custom ULTRAKILL Textures

Type “image to cybergrind converter” into Google and you hit a wall: no tool actually uploads a photo and spits out a playable arena. In 2026, ULTRAKILL still holds a 97% positive rating across 237,008 Steam reviews (Steam, retrieved 2026-07-13), and the game remains in Early Access five years after its 2020 launch. That gap between what people search for and what actually exists is what this guide fixes.

You’ll learn the two real paths for getting your own images into the CyberGrind arena — as wall textures and as hand-built pattern layouts — plus the exact file specs ULTRAKILL expects. We build image-conversion tools for a living at SnapConvert, so the format and resizing steps below are ones our team ran ourselves before writing them down.

Key Takeaways

• No tool auto-converts a photo into a playable CyberGrind pattern — you either texture the grid or build a layout by hand (ULTRAKILL Wiki, 2026).
• Custom tile textures must be exactly 100x100px PNG files named _Top, _Side, and _Base, with no transparency.
• Skybox images need 3600x1800px PNG resolution to match the game’s default sky assets.
• Installing any custom pattern automatically disables Steam leaderboard score submissions.

What Does “Image to CyberGrind Converter” Actually Mean?

The phrase covers two different things, and mixing them up is why so many searches come back empty. A texture converter turns your photo into wallpaper for the grid’s tiles and sky. A pattern editor lets you lay out where enemies, jump pads, and stairs sit on the arena’s 16x16 grid — it doesn’t read pixels from an image at all.

As of 2026, we found no publicly available tool that scans an arbitrary photo and auto-generates a matching CyberGrind arena layout. Patterns consist of a 16x16 grid of cells, each holding a height value and a prefab code, stored in a plain-text .cgp file (ULTRAKILL Wiki, 2026). Building one still means placing cells by hand in an editor, not importing a JPG. If someone tells you otherwise, they’re probably describing the texture route below.

Is ULTRAKILL Still Active Enough to Bother With Custom Content?

In 2026, ULTRAKILL is holding roughly 3,700 concurrent Steam players on an average day, with a 24-hour peak near 4,100 (SteamCharts, retrieved 2026-07-13). That's a small fraction of the game's all-time high of 69,799 concurrent players, which it hit in February 2026. Even at its quieter baseline, that's still thousands of people actively grinding the exact mode this guide is about.

Review sentiment backs that up. Across 237,008 total reviews, 97% are positive, and even the most recent 30-day window sits at 96% (Steam, retrieved 2026-07-13). A game doesn't hold numbers like that by accident, and it explains why the custom-pattern and texture-modding scene around CyberGrind has stayed active years after launch.

What You'll Need Before You Start

• Any source image — a photo, screenshot, or piece of art
• ULTRAKILL installed via Steam, with local files accessible
• A free image converter and basic crop/resize tool
• Time: about 20–30 minutes for your first custom texture set
• Difficulty: Beginner (textures) to Intermediate (custom patterns)

Step 1: Convert Your Photo to PNG First

By the end of this step, your source image will be in the one format CyberGrind textures actually accept. Most phones don't hand you a PNG by default, and that mismatch is the single most common reason a "custom texture" never shows up in-game.

iPhones have saved photos in HEIC/HEIF format since iOS 11 (Apple Support, 2026), and plenty of Android screenshots land as WEBP. ULTRAKILL's texture loader wants PNG, full stop — no HEIC, no WEBP, no JPG.

1. iPhone photo? Run it through our free HEIC to JPG converter first, then convert that JPG to PNG with the JPG to PNG tool.
2. Android screenshot or web image in WEBP? Use our WEBP to PNG converter directly — it skips the JPG step entirely.
3. Already have a JPG? Convert it straight to PNG with the same JPG to PNG converter.
4. Not sure what format you're holding? Our general image converter hub accepts most common formats as a starting point.

When we tested this workflow with a batch of iPhone screenshots, every single blank tile in-game traced back to a leftover HEIC or WEBP file that never got converted. Check your file extension before you move to resizing — it saves a second trip back to this step.

Step 2: Resize to the Exact Pixel Dimensions CyberGrind Expects

ULTRAKILL doesn't auto-scale custom textures, so getting the pixel dimensions wrong is the second most common failure point. Each texture type has its own fixed size, and there's no tolerance for "close enough."

Texture Type	Required Resolution	Format
Tile Top / Side / Base	100 x 100px	PNG, no transparency
Skybox	3600 x 1800px	PNG, no transparency

Crop or resize your converted PNG to exactly 100x100px for tile textures, or 3600x1800px if you're building a custom skybox (Steam Community Guide, 2026). Most basic photo editors, including the crop tool built into Windows Photos or macOS Preview, handle this fine — you just need exact pixel input fields rather than a drag-to-resize handle.

Step 3: Name and Install Your Texture Files

By the end of this step, ULTRAKILL will recognize your images as a selectable texture set in the Cybergrind terminal. The game matches files purely by filename suffix, so getting the naming pattern wrong is an easy way to have "nothing happen" after installing.

1. Create three PNG files sharing one base name: YourTexture_Top.png, YourTexture_Side.png, and YourTexture_Base.png.
2. Navigate to your ULTRAKILL install folder, then Cybergrind/Textures. On Steam, right-click ULTRAKILL → Manage → Browse Local Files to get there fast.
3. Drop all three PNGs into that folder.
4. Open the in-game Cybergrind terminal and select your texture set from the Top/Side/Base buttons.

Skip transparency entirely. A transparent background doesn't render as "see-through" in the arena — it just shows up as flat white (Steam Community Guide, 2026). Flatten your PNG onto a solid background before exporting.

Step 4: Build an Actual Pattern Layout (Beyond Just a Texture)

Texturing the grid changes how CyberGrind looks. Building a pattern changes how it plays — where enemies spawn, where jump pads sit, where the floor rises into stairs. That's a manual layout process, not an image import.

Patterns live in .cgp files, which are plain text despite the custom extension (ULTRAKILL Wiki, 2026). Each file holds two stacked 16x16 grids: one for cell heights, one for prefab codes like n for melee enemy spawns, p for projectile spawns, J for jump pads, and s for stairs.

1. Open the official Pattern Editor in your browser, or launch it from ULTRAKILL's in-game terminal.
2. Place height values and prefabs cell-by-cell across the 16x16 grid to sketch your layout.
3. Export the finished layout as a .cgp file.
4. Drop it into [Path to Game]\ULTRAKILL\Cybergrind\Patterns to make it selectable in-game.

If you want a more visual, drag-and-drop workflow instead of a raw grid editor, fan-made tools like CGPEditor add a 3D preview on top of the same .cgp format. Either way, expect to build layouts by hand rather than by uploading a photo.

Since the whole file is plain text, you can open a finished .cgp in any text editor to see exactly how it's structured — useful if you want to study an existing community pattern before building your own from scratch. Downloadable pattern packs on sites like Nexus Mods are a fast way to see finished examples of the height and prefab grids working together.

Common Mistakes That Break Custom CyberGrind Content

Most failed attempts trace back to one of five avoidable errors. Here's what actually goes wrong, and how to fix it.

1. Wrong file format. JPG, WEBP, and HEIC files are silently ignored by the texture loader. Convert everything to PNG before it touches the Textures folder.

2. Transparent backgrounds. Transparency renders as solid white in-game rather than showing through to the environment behind it.

3. Off-spec resolution. A 512x512 tile texture or a 1920x1080 skybox won't display correctly — match 100x100px and 3600x1800px exactly.

4. Missing one of three files. Tile sets need all three of _Top, _Side, and _Base. Drop just one and the whole set can fail to apply cleanly.

5. Expecting leaderboard scores with custom patterns. Enabling any custom .cgp pattern automatically disables Steam leaderboard submissions for that run (ULTRAKILL Wiki, 2026). If you're chasing a P-rank on the official leaderboard, play the default rotation instead.

What Success Looks Like

If everything went correctly, opening the Cybergrind terminal should show your custom art on the Top, Side, and Base buttons instead of the default gray panels. Selecting a custom skybox should wrap your image around the entire arena when a match starts. If you built a pattern file, it should appear as a selectable custom option, ready to load into an arena built from your own grid layout.

Once the basics work, the natural next step is refining tile textures so they repeat cleanly at the edges, since CyberGrind tiles that arrangement across dozens of grid cells during a run.

Frequently Asked Questions

Is there an AI tool that automatically turns a photo into a playable CyberGrind pattern?

Not as of 2026. Patterns are built from a 16x16 grid of height and prefab values stored in a plain-text .cgp file, and every available editor — official or fan-made — requires placing those values by hand rather than importing an image.

Can I use JPG instead of PNG for CyberGrind textures?

No. ULTRAKILL's texture loader specifically expects PNG files named with _Top, _Side, or _Base suffixes. Convert JPGs first with a JPG to PNG converter before dropping them into the Textures folder.

Why does my custom texture show up as solid white in-game?

That's almost always a transparent background. ULTRAKILL renders transparent PNG areas as flat white rather than showing through to the environment, so flatten your image onto an opaque background before exporting.

Do custom CyberGrind patterns disable my leaderboard score?

Yes. Installing and playing any custom .cgp pattern automatically disables Steam leaderboard submissions for that run. Scores only count on the official pattern rotation.

What's the easiest way to start if I've never edited a CyberGrind pattern before?

Start with textures, not patterns. Converting one photo to three correctly-sized PNGs takes about 10 minutes and gives you a visible result immediately, while pattern editing has a steeper learning curve tied to the 16x16 grid format.

Turn Your Image Into CyberGrind-Ready PNGs Today

The phrase "image to cybergrind converter" describes a two-step reality: convert your photo to the right format, then resize it to the exact pixel dimensions ULTRAKILL expects. No automatic pattern generator exists yet, but the texture route takes most people under half an hour from photo to playable arena.

Start with whatever format your source image is currently in — our JPG to PNG, HEIC to JPG, and WEBP to PNG converters are free and run entirely in your browser. If you're still deciding which format to shoot or export in going forward, our breakdown of HEIC vs. AVIF vs. WEBP vs. JPG covers the tradeoffs in more depth.