Yes, although I wouldn’t call them “side” projects. Slash’s Snakepit was Slash’s band from 1994 until 2002, and they released two studio albums: “It’s Five O’Clock Somewhere” in 1995 and “Ain’t Life Grand” in 2000. Velvet Revolver was a commercially successful band from 2002 to 2008. Slash, Duff McKagan, and Matt Sorum were in it with guitarist Dave Kushner and lead vocalist Scott Weiland from Stone Temple Pilots. The band released two albums: “Contraband” in 2004 and “Libertad” in 2007. From 2009 onwards, Slash also released music under his name, collaborating with the project “Slash featuring Myles Kennedy and The Conspirators”. “Apocalyptic Love” (2012), “World one Fire” (2014), “Living the Dream” (2018), and “4” (2022) are the four studio albums released with this formation.