Yesterday's release of METAL GEAR RISING: REVENGEANCE included always on DRM that required being connected to the Internet to play the Windows edition of Konami's action game. It seems this stealthily snuck into the game, as Konami tweets that it was not intended, saying: "We are aware of the offline play issue for Metal Gear Rising for Steam and are working on a fix. Please stay tuned for more updates!" There is no follow-up tweet on the topic, but according to CVG the fix has now been implemented.