I have tried to compile a complete list of games like Thimbleweed/Maniac Mansion.
I only found 12 so far. They are listed here: pointandclickfun
Does anyone know anymore? They MUST comply with the 3 requirements at the top.
And I am thinking about adding a 4th: Must be published for sale. So the list don’t get filled with tons of half finished games somebody made as a hobby.
I also made the page so that people who google for example “Games similar to Monkey Island” might stumble upon that page and discover among others, this great game.