Finished at last! 133 hours later and I'm finally done with my Impossible Demoness No-loss game. I found it challenging in the early game and then again from about fight 120-180, but after that it was very easy and as others have mentioned the final fight is a walkthrough. You'll need Teleport 3 to do it though (at least the way I did it).
Level 74, 131 quests with about 3-4 I couldn't be bothered finishing including the Demon lords of Helvedia. 451 fights which is at least 20-30 less than I could have done with all the various pointless upgrade fights I had available, but I knew the xp wouldn't add up to much so I didn't bother.
Basically I used Dark Paladins, Demons, Wizards, Demonologists and Dragon Riders for the last 100-200 fights, but I swapped the Dragon Riders for Executioners for the final fight. My Wizards have ended up doing an absurd 41% of my total damage due to insanely overpowered Halving ability. With Fortune's Smile my troops were doing about 90% crit at the end.
In the final fight I just used Teleport 3 every turn to put one of the tanks in a corner, which would do about 10k damage per whack. Then all I had to do was time it so that there were some junk enemy units on the battlefield when I killed the Spirit (dwarves) and then I could Phantom + Resurrect to my heart's content.
I really enjoyed King's Bounty Dark Side but I doubt I'm game for a second run-through anytime soon (famous last words!) Hopefully the devs will patch it so that the other two races have a chance at no-losses, else it'll be Matt's mod. I thought that this was easily the best KB game since Armored Princess. My only complaint is that is so loooooooooooong, but I loved the Shelter concept and a couple of the late islands, especially Aralan, were as much fun as the first three islands which I thought were probably the best. For a game with 450 fights I didn't feel like I was grinding pointlessly very much. Sure there were a few bugs and I did get some CTDs very occasionally and having to reload a frozen battle from time to time, but overall it is very stable.
This is a real return to form for the King's Bounty series after the mediocre Warriors of the North. Well done, devs! That was the best $25 I ever spent.
