Bandai Namco Entertainment has announced that Man : A Hero Nobody Knows online multiplayer service starting February 8, 2022. However, 1-on-1 online matches will still be playable, as will offline modes.
In this three-on-three action fighting game, players form teams of three characters to face off against an opposing team. If they choose Saitama, the characters must survive long enough for him to arrive through the "Hero Arrival System." By performing well in battle with just two characters, players can decrease the amount of time it takes for Saitama to arrive.
Furthermore, One-Punch Man: A Hero Nobody Knows was released for PlayStation 4 , Xbox One and PC in February 2020.
Source: ANN