https://www.gamespot.com/articles/battle-royale-game-h1z1-is-now-free-to-play/1100-6457240/

The zombie survival game-turned-battle royale H1Z1 is now free to play just one week after its official release. After three years in early access, version 1.0 of the game launched for PC on February 28 for $20 / £15 alongside a new car combat mode called Auto Royale. Those who purchased the game will receive in-game items as a consolation, but can also receive refunds in accordance to Steam's refund policy.

The day prior to switching to a free to play model, H1Z1's peak concurrent player count on Steam was around 7,000 total. According to SteamCharts.com, the peak player count in the last 30 days was around 15,000 users; its best month came in July 2017, when the game peaked at 150,000 players with an average of 86,000 players. This didn't bode well for the game considering its main competitor, Playerunknown's Battlegrounds, has reached well over one million concurrent users every month since September 2017.