Les

FM-1 firmware · 1.0.0

Dungeon Tracker

A four-track tracker-style FM groovebox whose home screen is a dungeon crawl played by your song, adding FM drums, wavetables and a C64-style voice.

Made by
Bourbon Weather
Released
October 29, 2026
Install
On the FM-1 Firmware Hub · source on GitHub
Scan
Scanned, nothing harmful found · Oct 31 What we checked
Last checked
October 31, 2026

What Dungeon Tracker does

  • Four tracks play FM drums, two-operator FM voices, Ambika style wavetables, a C64 chip voice and sampled kits.
  • The tracker sequencer writes steps as rows with velocity, chance, ratchets, nudge, locks and SPEED, LOOP and PITCH commands.
  • DICE rolls whole sounds and VARY rolls pattern variations, and you hold the dice you want to keep.
  • Each track is played by a class that sets its voices and the sounds it can load, twelve points in all.
  • Six patterns live on the white keys and arrange into a song, with REC capturing a live pattern jam.
  • Switch on DUNGEON and the song fights the corridor, cutting a track from the mix when its adventurer falls.
  • External keyboards and sequencers play the four tracks over USB or the TRS input, with clock sync and a web editor.

Its modes

HOME
You watch the first-person dungeon corridor while the party walks one square per beat with your song.
EDIT 1
You set the first four knobs of the track's engine, such as TONE, KIT, WAVE or OSC.
EDIT 2
You set the engine's second group of four knobs, such as BODY, FEEL, FLTR or MOD.
DICE
You roll each part of an FMTONE, FMKIT or CHIP sound, holding the dice you want to keep.
MORPH
You blend the track's sound toward another preset of the same engine by amount.
TRACKER
You write steps as rows top to bottom, with note, velocity, chance, ratchet, nudge and command columns.
VARY
You roll variations of the selected track's pattern with dice for hits, notes, shift, ratchets, accents and chance.
PATTERNS
You hold ENV to pick, copy, queue and clear the six patterns on the white keys.
SONG
You arrange the six patterns into sections per track, or record an arrangement by jamming pattern switches.

What Les checked

Dungeon Tracker v1.0.0Scanned October 31, 2026

What we checked for

  • The file is exactly the one its author published
  • It's the same file we saw when this release first came out
  • It opens cleanly as an FM-1 firmware, nothing damaged
  • It doesn't show up on your computer as a keyboard, mouse or other input device
  • It doesn't show up as a USB drive or network adapter
  • Its text mentions no computer command tools, like PowerShell, Terminal or a download command

What we found

  • MIDI and audio, as expected
  • A serial port, which many FM-1 firmwares keep for debugging. It can't type into your computer.

StatusScanned, nothing harmful found

Les scans every firmware here whose file is public, and shows what it checked and what it found. A scan lowers the risk; it can't rule it out. This firmware is made by its author, not by Les or M-VAVE. Back up first, and install at your own risk. How Les scans firmware

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