PLAYERUNKNOWN'S BATTLEGROUNDS has been doing very well for itself. They hit one million collective players online at one given time and blasted through Steam's record of most concurrent players at a time soon after. But the General Manager of the game and development studio Daybreak Games, Anthony Castoro, said in an interview with IGN that, "There wouldn’t be a PlayerUnknown’s Battlegrounds if there wasn’t an H1Z1."
According to him, PUBG was created at an opportune time. He stated that PUBG creator Brendan Greene actually learned a lot from his work on H1Z1. " “I think there was a lot of mentoring that went on for Brendan,” Castoro said, “because he hadn’t done commercial games before, he had done mods. He learned a lot, I think probably, from the development cycle there. It’s kind of why I say there wouldn’t be PlayerUnknown’s Battlegrounds without H1Z1.”
Greene started as a modder for DayZ, then was hired to join Daybreak Games to work as a consultant before becoming a full-fledged developer for PUBG. Ironically, DayZ started as a mod itself, made within the confines of ARMA.