I played Descent with the kids, thinking they were old enough despite the complexity and I was mostly right. There were a bunch of tactical opportunities missed, but it was fun.

I was thinking about why Descent (1e) works so well for me, and a lot of it is about striking the right complexity (more options) while most of that complexity makes sense (theme). But, what I think really delivers about it is that it has all of the elements I'd want in a hack-and-slash dungeon crawl: lots of monsters, interesting character abilities, good treasure, exploration, lots of dice rolling, traps, special "effects", and compelling miniature tactics.

Yet, 2nd edition seems to have (most) of these things on the surface but largely doesn't do it for me. Hm.