I’ve spoken before about Black Sonata. I enjoyed doing the print portion (I like to be crafty some times); it is quite a bit of work though - it took me about 2 weeks working on it an hour or two each night.
And then I really enjoyed playing it. A hidden movement, deduction, solo game? Sounds great!
And then I made myself some handy-dandy laminated note-taking aids and I broke the game. I think the expansion modules will unbreak it, but I haven’t had a chance to try out any of the modules yet.