By "manufacturers" I meant either their marketing/sales forces or the agents they might employ like RightsCorp or whoever. Of course, all plausible deniability forces would be in play, so fingering the actual game publisher/mfr. would be difficult to impossible.
Poisoned or fake Downloads, Torrents, etc. is an old RIAA/MPAA favorite, either to waste the time of the downloader or to try and "teach them a lesson".