The code they give you activates on Steam.
Link: http://twitter.com/#!/IGN
#!/IGN" rel="nofollow" target="_blank" onclick="_gaq.push(['_trackEvent', '
thread', 'click', '3464464 - free-copy-of-orcs-must-die-pc-game-by-signing-
up-for-ign-prime-30day-trial']);">http://twitter.com/#!/IGN
Link: http://login.ign.com/prime/promos/orcs-must-die/?utm_campaign=t
You have to sign up for a 30-day trial of IGN Prime, but you can cancel
immediately to avoid incurring any charges. I believe they also have DLC for
Sanctum.
