This guide is intended for people who want to use any Guitar Hero controller to play the Pro Mode in Fortnite Festival. If you want to simply play the normal mode, please check out this tutorial.
Detailed walk-through
Step 1: enable Windows developer mode
- On Windows 11 go to Settings → System → For developers → Developer Mode
- On Windows 10 go to Settings → Update & Security → For developers → Developer Mode
Step 2: download and install the FestivalInstrumentMapper
Step 3: plug in your guitar and launch the mapper
Step 4: select your guitar and click “Start Mapping”
Step 5: launch Fortnite and, once in the lobby, press a button on your guitar controller. Two new instruments (guitar and bass pro mode) will appear on the bottom right.