LEGO games for grown-ups?
The most obvious answer is probably the LEGO Heroica range, especially when played in "Campaign" mode; for more details see our Heroica tag wiki.

There are also a few examples of "Expert" rules that others have come up with, including our very own Joe Wreschnig's set on his dedicated site.


  Advanced Heroica PDF by Jason Glover/GreyGnomeGames (archived page)


Both of these make the ruleset more complicated and can encourage more of a team play than the usual competitive play that my kids make it.

LEGO Creationary is another game where the modelling requirements make it a slightly less child friendly game than some of the others.