@ZombieP1owGames die when they're required to connect to a centralized closed service like EA servers. Just a matter of time til Bad Company and BF4 shuts down, once EA decides it's no longer worth it. After that point unless some modders who actually care about the game unlike EA make an offline mode you can never play the game again. Meanwhile the campaign will remain playable, well for the most part anyways, after a point you'd have to knock Origin out of the game so the campaign can be preserved since without that they can just delete the game off origin, delete it form your library, ban you whatever they want and the games gone.
Games like Quake III Arena or DOOM can never be killed, because they are DRM free so you can store them away on a hard drive for ages and it'll still work, you can host your own server for local play, LAN or online, the code is public so anyone can port it to newer platforms so the game can be played for as long as at least some people care, it's built to last. Battlefield games and the like are built to die, it's not a matter of if, but when. It's not in EAs interest to keep these games alive til the end of time, they don't care, if anything having the old games playable affects their business negatively because people can just stay on the old ones for longer instead of buying the new games. You literally lose nothing if you wanna play only until the next one comes out on official servers and give the people that care the tools to keep the game alive so i really don't understand why you'd be against mod tools/offline/LAN modes/etc. More features and choice is rarely a bad thing.
Also here just some games off the top of my head i can think of that are completely unplayable due to being rendered useless by requiring a constant connection to services that no longer exist:
Nosgoth
Battleborn
Lawbreakers
Paragon
EA's own Darkspore or Titanfall 1 which servers are hacked and they refuse to fix it.
or just read this: https://www.ea.com/service-updates
Anything on that list with online function are now completely unusable, wouldn't be the case if they supported offline/LAN/self host servers/mod tools etc. Back then at least you could play single player offline ,as we move forward it's just getting worse and worse, good luck playing modern call of duty campaign offline. Soon people gonna jump on the streaming bandwagon which gonna be the last nail in the coffin of game preservation. Remember OnLive? I hope i made my point.
