https://archive.org/ is preserving it by letting you play them right in the browser via emulators compiled to Emscripten. For example here is the Macintosh version of Dark Castle, which I spent some number of hours winning at the time (circa 1986, digitized sound was still a brand-new thing) https://archive.org/details/mac_DarkCastle_1_2 If you hit "Options" you'll notice the familiar WASD keyboard control layout. We…
A couple of very different examples are Super Mario Run (which is just stupid) and Fortnite (which at least makes sense because it’s purely multiplayer in battle Royale mode).
This seems driven by a combination of analytics and anti piracy.