The Submerged Machine, better known as The Submachine series is a series of point-and-click adventure games, created by Mateusz Skutnik, and first released in September 2005.
In all the games you play as an unidentified hero (or heroine) who awakes, seemingly after having some sort of amnesia, in various unknown locations and have to solve different puzzles and examine the environment in order to escape. The series has been generally well reviewed. There are so far eight installations in the main series as well as three spin-offs, and one exploration. Two of the spin-offs was made for a Jayisgames contest and the other for the website of the band Future Loop Foundation.
Source: Submachine Wikia, "Submachine Series", available under the CC-BY-SA License.