do all players win star realms pirates co-op
By the nature of it being a co-op then everybody wins.  I can't anything specific in those rules to say an eliminated player doesn't win so I wouldn't rule that just those surviving are winners.  It seems very against the spirit of a co-op game to try and claim you won solo unless thats specifically in the rules such as Archipelago where everyone wins/loses and if players win there is a 'grand winner' amongst them.