G-Diffuser builds on Emulation King

G-Diffuser v1.2.3

Wed, 04 Nov 2026 00:00:00 +0000

for Windows, for Linux

Fixes

Correct complete-course snapshot content binding so metadata-only edits do not reuse an incompatible retained snapshot.
Handle terminal disk-write refusals without trapping Course Edit in its save wait loop.
Fix the host editor’s remaining 64-node admission ceiling. The supported total remains 127 nodes, including forks.
Restore Content Library layout previews for supported tracks above 64 nodes.
Adapt native load, overwrite, and delete confirmations to long filenames while keeping normal-size text and the Yes/No controls in place.
Size the Course Edit information panel dynamically to fit the track title, length, and node count.

Save compatibility — read before updating

Close the game and back up the complete installation save/state set before updating, not only the cartridge .sav file.

This release writes version-2 .gcs snapshots and still reads version 1. Older builds cannot read version-2 snapshots or packages that contain them. Before downgrading, restore the complete matching pre-upgrade save/state backup. Keeping old snapshots alone is not sufficient.

The name limit remains 20 characters. The course budget remains 127 total nodes, including forks.

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G-Diffuser v1.2.2

Tue, 03 Nov 2026 00:00:00 +0000

for Linux, for Windows

G-Diffuser 1.2.2 - Save and Import Hotfix

Fix disk-write ownership checks that could prevent Course Edit saves from completing and cause track imports to fail with MFS error 244.
Preserve snapshot validation, rollback, and recovery protections during save and import operations.
Add regression coverage using the production disk-write helper, including write failures and rollback.

Back up your installation’s save and course-state files before updating. This hotfix does not change the course snapshot format.

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G-Diffuser v1.2.0

Sun, 01 Nov 2026 00:00:00 +0000

for Linux, for Windows

1.2.0 brings G-Diffuser to macOS and Android, adds an in-game updater, and is the biggest Course Edit update so far: Mouse Controls, undo, forks, lava strips from F-Zero GX, Magnet strips for the original F-Zero, and Blender-style camera controls. Thanks to everyone in the feature requests channel who shaped it.

Before you update

Coming from 1.1.0, download this release by hand. 1.1.0 has no updater. From 1.2 on, desktop builds can update themselves.
To install by hand, extract the release over your existing G-Diffuser folder. Your saves/, ROM and game data stay where they are.
Rebuild your ROM hack archives. Hacks now carry more of their own data, and an archive built by an older version doesn’t have it.
Continue Cup is per hack. An existing gp_resume.bin stays with the stock game, and each hack starts with no saved cup.
Courses that use new features need 1.2. Forks, magnet traps, custom music and custom elements are ignored or lost on older versions.

New platforms

macOS (Apple Silicon), on Metal, for macOS 11 or newer. Tested on an M1. The build isn’t signed, so allow the first launch under System Settings > Privacy & Security. Thanks to FeedMana.
Android (arm64), on OpenGL ES 3.0, for Android 7 or newer. You import your own dumps through the file picker, and the on-screen pad can be remapped like a real controller. Android has no in-game updater, so install new versions from the APK. Thanks to izzy2lost and airon-main. See docs/ANDROID.md.

Updates

In-game updater, using the new gdx-update helper, on Windows, Linux and macOS.
Rolling nightly builds, published with checksums. Builds now report their version and channel.

Course Edit

Editing

Undo and redo, with an optional History panel of the last 32 changes. Click a row to jump back to it.
Forks: the Split, Insert and Link tools build a second path. Path B can span several segments, split nodes show in green, and a badge shows the active path.
Lava strips: left, right, middle or both sides. They drain energy and kill at zero, and CPU racers steer away from them. “Lava strips never kill” turns off the kill.
Magnet traps: thin pulsing rails on the left or right of the road that pull machines toward the track edge, with their own warning sound and adjustable pull strength and range. Drive away from the edge to get clear, and CPU racers steer away from them. They can’t be placed on pipes, half-pipes or cylinders.
Bank snap at 45, 90 or 180 degrees.
Line up a run of three or more points.
Multi-select and box select with the mouse.
Track names up to 20 characters, including in the Edit Cup.

Controls

Blender-style camera: orbit and pan with a button you choose, and zoom with the wheel. Sensitivity and inversion are adjustable.
Mouse dragging for point position, height, width, bank and offset.
Number-key shortcuts and rebindable tool keys.
A hint strip for the current tool, and a Controls Help page showing your live bindings.

Content

Per-track custom music: put .ogg, .flac or .wav files in music/custom/ and pick them from the BGM menu.
Mod packs can add named venues, skyboxes, music, part styles and track effects through mods//elements.txt. See docs/modding/COURSE_ELEMENTS.md.

Racing

Continue Cup: leave a Grand Prix between races and pick it up later from the main menu.
Single Race rules in Practice: 1 to 99 laps or unlimited, a chosen number of CPU racers, and an optional random rival. These races never write records, ghosts or points. New lap digits by Heebeejeebees.
X Cup code queue: paste several seed codes to use them in order, and copy the codes of the cup you just played.
X Cup real courses: an option that makes each X Cup course a random stock or Expansion Kit course, six different ones per cup. CPU racers use that course’s tuning. Seed codes are off while it’s on.

…

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G-Diffuser v1.1.0

Sun, 30 Aug 2026 00:00:00 +0000

for Linux, for Windows

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