No revenue estimate for XBOX — its rating/review counts don't calibrate to sales the way Steam's do. The Steam version is estimated at $2.2M — a different platform, not this one.

METAL GEAR SOLID - Master Collection Version

Released in 1998, this was the first 3D title in the METAL GEAR series. The game pioneers 3D stealth action against the threat of war and global nuclear weapons, using live action footage, cinematic cut scenes, interwoven with innovative gameplay.