Epica are now on a game called "JamLegend", which is kind of like a flash Guitar Hero that can be played over the internet.
At the moment, Resign to Surrender is the only playable song, but seeing as it was posted on the Epica MySpace it's safe to say this was endorsed by Epica and there's nothing illegal going on.
To play the game click below:
http://www.jamlegend.com/song/85545