Assassins Creed, but at the end of the game you get an IRL assassination mission to really test your skills.
I'll accept a Hitman version too.
I'll call this The Doom Initiative: by law, have game companies be forced to release the source code of their games 5 years after release. No exceptions. And for any game that is reliant on a web server to run, release that source code after 10-15 years. If you don't comply, your company gets the equivalent of a death sentence: gets forcefully dissolved.
Every time you install a game through a game launcher, there's a 1 in 4 chance Gone Home gets downloaded and installed instead.
Alternative version, there's a 1 in 4 chance the launcher pretends to download the game, but at the end just presents a screen with "Touch Grass" on it.