Bandai Namco Entertainment announced that the game One-Punch Man: A Hero Nobody Knows online multiplayer service starting February 8, 2022 . However, 'online' 1v1 matches will still be playable, as will 'offline' modes.
In the three-on-three action fighting game, players form teams of three characters to face an opposing team. If they choose Saitama, the characters must survive long enough for him to arrive via the “Hero Arrival System”. By performing well in battle with just two characters, players can decrease the amount of time it will take 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