Yes, I played World of Xeen and I know it. To be honest, if someone asks me "which part is the best?", I simply won't be able to answer, but when I asked many of my friends, the answer was always the third one, and after a longer conversation about Heroes, it turned out that it was World of Xeen. Honestly, I played Heroes so much that I managed to ruin more than one disc. Now I only play King's Bounty: Legend, because there's nothing else to play. I need to buy Heroes again.