Fez is one of those hugely impressive indie games made by a tiny team and thrown out into the world. In this case its the work of several genius' including Phil Fish and you really should play it because its adorable and mind bending and way bigger and more complicated than you might expect.
It's been four and a half years since the game released and things have been pretty quiet for some time, until today when a massive update was launched which also includes a new game mode.
Fez version 1.12 has been in the works for more than a year and includes additions to the PC, Mac and Linux versions of the game. There are a whole bunch of fixes for issues players have found over the years, and you can find a full list here.
There's also a speedrun mode which challenges you with getting little Gomez through this complicated game world as quickly as possible. Good luck!