Starcraft is something close to timeless; I'd bet there are some second-generation players around by now.
tetris for sure is having the same thing.
And while I don't watch SC, I do watch tetris. It's a guildy nerd-pleasure of mine, if you will, but I can tell you the events aren't huge nor glamorous and it doesn't take away from the m at all.
But I think I would consider both to be timeless at this point.