Horizon Zero Dawn PC Patches to Slow as Forbidden West Development Becomes Focus Development power is shifting to Horizon Forbidden West ahead of its release this year. Horizon Forbidden West. The announcement came as part of Guerrilla’s patch notes for Horizon Zero Dawn’s most recent PC update. The update “introduces crash fixes and performance improvements” as well as a few other changes. Within the notes, Guerilla added the following statement regarding future updates: “As our team continues development on our upcoming title Horizon Forbidden West, we are shifting to less frequent updates for Horizon Zero Dawn Complete Edition for PC after this patch,” adding “Please note that we will continue to monitor our community spaces as always!”