Following on the Heels of TIS-100 and Hacknet last year, my latest source of computer game amusement is Shenzhen I/O.  Basically a game covering the un-exciting world of electronics engineering, you are an ex-pat citizen living in Shenzhen, China, helping a minor player in the electronics industry create "cheap Chinese junk" to fill various needs.  Things like "Drinking Game Score Keeper" and "Fake Security Cameras" are commonplace.

It also has a design mode, and the Steam Workshop is littered with challenges from other players, plus the ability to create your own.  Overall, it is a great game to exercise your thought processes, build equipment, get an idea how "things work" in the real world.  If all else fails, the challenging game-within-a-game Solitaire is amusing.  So amusing in fact that it has been released as a standalone game, possibly to the chagrin of the developers.