As their name suggests, forever (or evergreen) games are games that don’t have a finale or culmination, as in “The End”. These games have a very high replayability factor (meaning we enjoy playing them over and over again).
Forever games are also timeless. We can pick up these games anytime , be it the day they were released, or a few years later, and play them for months or years. We can even stop playing for a while, pick them up again years later, and they’d still be fun and relevant.
Crusader Kings. Check out https://youtube.com/@imperor
Buddy of mine feels the same and I will relentlessly shill for him. He’s been making videos explaining what he does and why while playing for both CK 2 and CK3 for years and got me into it. Once they click, there is nothing like it.
He also recently started streaming a few months ago.
https://twitch.tv/imperorthefirst