There have been many reports from users that Metal Gear Rising: Revengeance stops functioning in Steam offline mode. The PC version of Metal Gear Rising: Revengeance was launched today but it was not without an issue.
The game stops working as soon as you go offline, this is according to the dozens of users, who have reported this issue on the game’s Steam discussion page. This is a huge surprise considering that MGR: Revengeance is a Single-Player only game. The users are getting restless as the game’s Steam store page has said nothing on the matter.
It looked at first that it was just some sort of DRM on the publisher Konami’s part, but upon further looking into the matter it looks like the culprit of this all could be Valve due an issue with Steam’s API.
One of the users at NeoGAF, “Guess Who” found that if you use a modified API in Steam’s Offline mode, this will solve the problem, though it is not a simple solution.
This is definitely a function of the way MGR uses the Steam API. Using a modified steam_api.dll allows it to work in Steam Offline mode. I can’t say whether it’s a bug or deliberate implementation, but it’s not any other sort of DRM, all Steam.
Platinum Games producer J.P. Kellams tweeted that he has no idea, but he will look into the problem as soon as possible.
It’s a shame this had to happen to the game on its release day. A lot of people were anticipating this game. A huge setback for Platinum games, however we hope they get this problem solved as soon as possible.
If you are experiencing any other issue with the game, you can browse our errors crashes guide for workarounds to fix the game.