Mental Repairs, Inc. is a pleasant, occasionally funny graphic adventure implemented in the Wintermute engine. The graphics are quite nicely done, in 3D, which is fairly impressive for a lone-man effort. It helps that the only people you talk to are machines, so the immobility of 3D faces in a fairly low-poly environment isn't a concern here.
The conceit is that you are a sort of machine psychologist/repairman, and that repairing machines involves talking to them. Using your pipe wrench on a machine transitions to you the machine's "psyche," an "alternative space" that in some sense represents the machine's issues and fears. Fixing the machine is then a classic adventure game puzzle.
It's not long, and some of the puzzles are not exactly intuitive, but it's a pleasant romp. And Gameboomers has a walkthrough should you get stuck.