See I did like the idea of the Tower/Ruins, but the Tower was too easy and the maps were rather simple, while the Ruins had a crazy number of units on some maps, but not exactly a tactical challenge. Also I wouldn't have minded the not being able to save if the maps were fun to repeat, but I found myself giving up every now and again just because I didn't want to have to play the same lame maps. If the maps were more interesting (more trick tiles, more of a maze, heck changing up the victory conditions would be nice too) then it would've been a much better feature!