Fortnite Festival, in some ways the spiritual successor to the Rock Band series, is getting local co-op, a feature that has surprisingly been absent so far. With the advent of Festival Season 7, up to four players can play (guitar) on the same console, and provided you have friends, you could even try and recreate the late-2000s, in-person Rock Band party.
In an involved live-action trailer, raucous community fun seemingly awaits those willing to have a 'sesh on the Festival's Main Stage. Sadly, as Fortnite Festival does not yet feature drums or microphones, their parts are locked to the standard pad. Currently, only lead guitar and bass have instrument support.