THE QUICK ANSWER
Use the configured instrument keys to check basic play first. Facepunch’s March 2026 Windows MIDI notice takes precedence over an old instruction to enable every MIDI option.
01
Check the instrument controls first
The Facepunch-hosted Instruments Wiki documents numpad note controls and Options > Controls > Instruments. Its default table maps Numpad 1–7 to C–B; modifier controls provide sharps and an octave change. Read your current bindings if you use a keyboard without a numpad.
Compare ordinary note input with the route that fails. If keyboard notes work but a hardware keyboard does not, describe that difference instead of treating the instrument item as missing.
Three ways notes can reach an instrument
Instrument key bindings
Configured keyboard input plays individual notes.
External MIDI device
Hardware input depends on MIDI support and OS compatibility.
Native .mid playback
A file supplies a saved sequence of note events.
Original input comparison; no external helper program is required by the cited native-file route.
Original explanation · not an account screenshot02
Hardware MIDI has a current compatibility caveat
The older Instruments reference describes enabling MIDI input after equipping an instrument. Facepunch’s 5 March 2026 Shipshape post separately reports Windows MIDI interface incompatibility, accumulating virtual devices and degraded client performance.
That post recommends disabling midiconvar.enabled and global.processmidiinput for affected users on the latest Windows updates who previously used MIDI commands. It explicitly says this stops MIDI devices working with Rust. Preserve that context when reading an older enable-MIDI guide; the advice is about a known implementation issue, not instrument ownership.
03
A .mid file is a different input route
Facepunch added native .mid playback in February 2020. Its documented route puts the file in the game’s instruments directory and uses instruments.playrecording with the filename without its extension.
Use an actual MIDI file you intended to play. Renaming an audio recording to .mid does not convert it into musical note events. A cassette recording belongs with the separate Voice Props controls.
Keyboard works but MIDI does not
Record the difference
Name the instrument and which input route works.
Check Windows context
Read the March 2026 MIDI-interface notice.
Check newer developer guidance
Do not assume an old enable-MIDI step resolves the reported compatibility issue.
A focused diagnosis map, not a claim that the documented issue affects every machine.
Original explanation · not an account screenshot| Configured note keys | Check the instrument’s keyboard controls. |
|---|---|
| External MIDI device | Check OS version and Facepunch’s compatibility notice. |
| Native .mid playback | Check the real file, instruments directory and filename. |
04
Include the input route and operating system
Save the instrument, keyboard or MIDI route, Windows version and exact behaviour. The sources reviewed did not establish that every affected Windows configuration has since been fixed. Check newer developer notes before re-enabling a disabled setup.
BEFORE YOU CONTINUE
Quick checklist
- Check the current instrument key bindings.
- Separate keyboard notes, a MIDI device and .mid playback.
- Read the March 2026 Windows MIDI notice.
- Include OS and input route in a report.
Official sources
Public game documentation and item descriptions reviewed on 26 October 2026 (America/Toronto). Community-maintained references are labelled where used.
- Facepunch Rust Wiki — Instruments (community-maintained) · reviewed
- Facepunch — Shipshape: Windows MIDI updates (5 March 2026) · reviewed
- Facepunch — Modular Turrets: native .mid support (6 February 2020) · reviewed
The Instruments Wiki and developer articles were read directly. The Wiki is community-maintained and old; the March 2026 developer warning supplies the newer Windows context. Searches of later developer notes did not verify a universal fix. No instrument, MIDI device, command, file playback or OS setting was tested.
