No revenue estimate for GOG — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $54.6M — a different platform, not this one.

METAL GEAR RISING: REVENGEANCE

Developed by Kojima Productions and PlatinumGames, METAL GEAR RISING: REVENGEANCE takes the renowned METAL GEAR franchise into exciting new territory with an all-new action experience. The game seamlessly melds pure action and epic story-telling that surrounds Raiden – a child soldier transformed into a half-human, half-cyborg ninja who uses his High Frequency katana blade to cut through any thing that stands in his vengeful path! A huge success on both Xbox 360® and PlayStation®3, METAL GEAR RISING: REVENGEANCE comes to PC with all the famed moves and action running within a beautifully-realised HD environment. PC version includes all three DLC missions : Blade Wolf, Jetstream, and VR Missions, in addition to all customized body upgrades for Raiden, including: White Armor, Inferno Armor, Commando Armor, Raiden’s MGS4 body, and the ever-popular Cyborg Ninja. "CUTSCENES" option added to the Main Menu. Play any and all cutscenes. "CODECS" option added to the Main Menu. Play all and any codec conversation scenes. Menu option added to the "CHAPTER" Menu enabling user to play only the Boss battles. "GRAPHIC OPTIONS" added to the OPTIONS Menu. Modify resolution, anti-aliasing, etc. There is an option reading "ZANGEKI" that will modify the amount of cuts you can make.