​In the fiercely competitive market ​of the online multiplayer game, Highguard​’s rocky start means it now has a lot to prove • Don’t get Pushing Buttons delivered to your inbox? Sign up here ​In the fiercely competitive market ​of the online multiplayer game, Highguard​’s rocky start means it now has a lot to prove Don’t get Pushing Buttons delivered to your inbox? Sign up here The Guardian’s journalism is independent. We will earn a commission if you buy something through an affiliate link.