Battlespire has the best dialogs and interactive characters in all the Elderscrolls series. It's not just the dialogs that are well written and make characters look alive but there's also an absurd amount of dialog options which affect the game and are fun to play. So if you enjoy this you should try getting the game because it's a unique game. It's a shame Ken Rolston didn't decide to use the same dialog system with Morrowind.
Tell me more! I read a review that describes the leveling system and the stats - that you get some sort of number of points to spend between stats, skills, spells, and starting equipment, and that you only level up once you go to the next area/level of Battlespire. Is combat very difficult? I get discouraged very easily if my character dies a lot, even if other aspects of the game are good. I read the Story of Battlespire in the Imperial Library, and I loved the Daedra dialog. I would very much be interested in the dialog trees. However, the review I read mentioned that sometimes it is very difficult to engage even plot-relevant NPCs in conversation because they all tend to be hostile.
Part of me feels that, after reading the "Story of..." for Battlespire and Redguard, I've sort of already played the game, minus technical hiccups and gameplay/bug frustrations. Given that I have already read the plot, would I really me gaining much by playing it?
@Freddo: Interesting! Could you ask him if he could release what he's worked on on TESNexus or PES? Or, if he doesn't have it anymore on his hard drive, maybe he'd let you upload the files you've got? It'd certainly be a boon to any modders who desire to take up the ambitious project of recreating the Battlespire experience with TESIII.