State of Decay will release on Steam Early Access today, September 20, following its release on Xbox 360 earlier this year.
The Early Access version will be compatible with a peripheral controller only, with keyboard and mouse support incoming with the final release.
Those who purchase access to the early addition will automatically get the final version when it releases later this year, according to an announcement by Undead Labs. The studio warns that casual players should wait until the final release to avoid frustration.
"What you'll see this Friday, if you choose to join forces with us to make the PC version kick ass, is a test version," a spokesperson for the studio wrote in a blogpost.
"It's not ready to be reviewed. It will not be perfect. It may still have crashes. What it won't have is a keyboard and mouse interface...not at first. Why not? Over the next however many weeks, we will be putting up versions of the keyboard interface and using your comments and feedback to make it awesome. Right this minute, the Early Access version requires an Xbox 360 controller."
The PC version of the open-world zombie game will boast enhanced graphics, higher resolutions and improved frame rate.
State of Decay has performed well on Xbox 360, where it sold 500,000 copies within its first fortnight of release. According to the studio, it was the second fastest selling game in Xbox Live history.