perl /tmp/yape.pl
The Expression matched, resulting variables were discovered. : 
        gameid: 12345
        content: > hello world fooo bar
    
        gamestate: 1288
Used Expression: 
(?msix:

    (?&opengamediv)              (?# opening div contating start of data ) 

    id="(?<gameid>\d+)-game"     (?# gameid --> id='12345-game' -> 12345 )

    (?<content>.*?)              (?# Skip a lot of content non-greedily )

    (?&comment_open)             (?# open comment contatining status )

    =\s*(?<gamestate>\d+)            (?# gamestatus=12344 -> 12344 )

    (?&comment_close)            (?# closing comment to make sure we get all digits )

(?# Rules )
(?(DEFINE)
  (?<opengamediv><div\s* class="game"\s*  )(?# This comes before our data )
  (?<comment_open> <!--gamestatus\s* )(?# game status in a comment )
  (?<comment_close> -->                   )(?# overkill    )
))