The RetroPie team took its time on purpose with this one and is still calling the support for the Pi 4 "beta," although it's now available for everyone and included within the 4.6 install.

10:26 am April 30, 2020 By Julian Horsey Raspberry Pi gamers patiently waiting for the awesome open source game emulation software RetroPie to support the latest and fastest Raspberry Pi 4 mini PC.

However, the easiest way to start playing vintage games on the Raspberry Pi is to install the purpose-made RetroPie distro, which packs a bundle of emulators.

The RetroPie team took its time on purpose with this one and is still calling the support for the Pi 4 "beta," although it's now available for everyone and included within the 4.6 install.