All three games are available for PC, Mac and Linux -- as well as the iPad, thanks to an open-source project completed this past summer -- so there's really no reason for you not to check them out. Unless, of course, you can only find satisfaction through thoroughly illegal piracy. We can role-play, if that makes it any easier. "No! Don't download all those games for free! That's illegal, you bad, bad buccaneer."
Update: As many of you have pointed out, this project has been around for some time -- today just marks the arrival of version 1.0. We apologize for being so very, very late to the party.