not sure if the sale price is live on gog yet.
Well, according to steam I've played 2375 hours on this since it was on steam and who knows how much I played it before it hit steam, at £6.99 it's a bargain for anyone that likes turn based strategy.
Turn-based wizard combat with the tactical positioning of chess and the bluff of poker. Features wizard customization, 100s of gear items, single player realm adventures, online leagues and co-op play.
There are both live and asynch modes so if like me you prefer to take a few turns then go off and do something else or are never sure if you'll actually have that hour free you thought you had then asynch is perfect for that.
There is also a free demo if you want to test it out but that doesn't help the Devs much.
Feel free to add me as a friend in the game client and invite me to a game if you want any help, I'm worto03 on the game too.