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.
ADOM, an old, very extensive, rogue like that ive played since it was in alpha. And the 2018 Battletech game.