Battlerite: Battle Royale
What do you get when even an "action MOBA/arena brawler" jumps onto the battle royale bandwagon? You apparently get the Battlerite: Battle Royale mode that was just announced today. This new mode is slated to arrive this Summer and will combine its action MOBA roots/arena brawler gameplay with battle royale gameplay. It will feature gameplay on a map that is "30 times larger than the standard arena mode map" with up to 20 players.

Battlerite is a free-to-play game available through Steam that features optional in-app purchases. Heroes go through rotations but you can permanently unlock your favorite heroes using either in-game currency that you can earn or via those in-app purchases I mentioned.