Lucifalle

Love comedic point-and-click adventures from the days of yore? Are you a fan of (slightly naughty) British humour? Then these games are definitely for you. They're cheap too, and you get two games for the price of one.
The story is suitably nonsensical: the second game involves Hitler controlling an army of mechanical Tyrannosaurus Rex, a suicidal robotic AI and a whole bunch of time-travelling hi-jinks.
Unlike most low-budget adventure games; a lot of effort has been expended on making every possible interaction with the game world produce some sort of humorous commentary (with the occasional "breaking of the 4th wall").
The first game, "Ben There, Dan That!", is technically free from the developer's website (feel free to give it a try), but considering the dwindling quality of adventure games in the modern era, I believe that any true fan should be able to contribute a few € or $ in support of hilarious, quality indie adventures.
In retrospect, this sounds like a sales-pitch XD.