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.
Counterstrike 1.6/Source/GO/2
Started playing around 2005. Playtime has waxed and waned over the years in my friend group, but we’ve generally played it fairly regularly for nearly 20 years now.