This is less a game, and more of a companion app for MGS4 and/or The Legacy Collection, but still nice to have. This standalone application allows you to brush up on the MGS lore up to the end of MGS4. It has additional functionality with 4, since some parts are redacted until you have a cleared game save file for it. Still a fun little way to catch up on MGS terms, characters, and historical events (real and made up). Doesn't include anything from Peace Walker, Ground Zeroes, or Peace Walker.