Okay, so I originally got the game by using a torrent file. Please refrain from condemning me until you read my short story.
I have been caught in the past by buying a full price game, that had no demo version, and not being able to play it with reasonable frames rates on my old computer. It was simply a waste of my money.
So what I do now when I see a game I might like is I get it for free first via a torrent. Then if I like what I see and most important, it plays well on my pc, I will purchase it.
So being able to first get a torrent of the game the Devs at Larian have made another sale.
I have now purchased the GOG version of DOT as well as the DLC.
And as a side note. I reckon the best form of DRM is lots of updates. Torrent sites do not always keep supplying updates. A person just might get fed up and buy a game knowing this.