H1Z1 is a zombie-themed survival horror MMO video game developed and published by Daybreak Game Company. The game's Early Access began on January 15, 2015. The game was released on August 11, 2017. Error g9 is a bug that can occur when launching H1Z1. It is caused by an outdated or corrupt graphics driver. Updating your graphics driver can usually fix this problem.
If you didn't find success with an option above, then try:
- Check for updates and install any that are available
- Verify the game files through Steam
- Delete the H1Z1 folder in the Steam directory and redownload the game
- Contact Steam support
- Contact the developers of H1Z1