Wikipedia
The Mystery Of Time And Space (commonly known as MOTAS) is a popular online graphic adventure game created by Jan Albartus (LOGAN). The game was produced using Macromedia Flash (it was produced before Adobe bought-out Macromedia and renamed the product Adobe Flash) and was an early influential example of the escape the room genre. There are 20 levels of varying length, some consisting of a single room and others consisting a large network of rooms. Though advertised as a constant work-in-progress with "new levels coming soon," MOTAS has not been updated since May 2008 ( years ago).
The game is currently available in 15 languages, including English, French, German, Japanese, and both traditional Chinese and simplified Chinese. There is also a moderated chat room available for players to discuss the game.
The levels have been noted for their jazz soundtrack, especially the Christmas-themed Level 8 and its jazz representation of "Santa Claus Is Coming to Town". Levels 9 and 13 play a MIDI version of The Way You Look Tonight.