The game’s Steam page gives an early 2020 release date. Undead Labs said yesterday that the Steam version will support cross-platform play with Xbox Live, same as the version available on the Microsoft Store for Windows 10.
The first State of Decay launched in 2013 as an Xbox/Windows exclusive, but was (and still is) sold on Steam. Microsoft acquired Undead Labs last year, shortly after State of Decay 2 launched in May 2018.
In May, Xbox chief Phil Spencer said Microsoft had plans to expand its offerings on competing digital storefronts, following the announcement in March that Halo: The Master Chief Collection would launch on Steam as well as the Microsoft Store. Gears 5 launched on both storefronts at the beginning of September.
Undead Labs said it would give out more details in a livestream on Monday at 6 p.m. EST.