Fun fact/veiled attempt to ask for money: Ron Gilbert and Dave Grossmann are creating a new adventure in the style of Maniac Mansion: https://www.kickstarter.com/projects/thimbleweedpark/thimble...
(No affiliation, I'm a backer though.)
(No affiliation, I'm a backer though.)
[1] http://www.ign.com/articles/2014/11/18/dave-grossman-joins-r...
It came in a bundle with Monkey Island, Loom and Zak McKraken.
Zak McKraken and Maniac Mansion were the two I couldn't make any progress on!
Later adventures had better graphics/story/characters, but were more linear than MM.
Thanks to the parent for the kickstarter heads up: I will be backing as soon as I get home!
I think the bundle also included Indiana Jones: Fate of Atlantis. Sucker punches all day.