Don't forget Runescape, one of the biggest MMORPG's in the world, which uses Java for it's 3D front end client, but even they will be gone soon; they're moving to HTML5.
I was surprised too when they decided to switch, I'm a ten year veteran since RSC, so Java has always been the way I have thought of that game. Even the company name, JaGex, is an abbreviation of 'Java Game Experts.'
They have released some detailed graphics of the new rendering engine in HTML5 and what I assume is Javascript and the results are fairly spectacular, much more clarity and the improvement is at least partially visible, it just remains to see if it will run as fast as RS2.
I should however clarify, the back end will still be a mixture of Java, with C++ strapped on top where needed.
It was really big for a while, had in excess of 200,000 players on at a time, then poor decisions on part of the company who runs them and being bought out by another company caused the game to be less popular than it was.
Currently it stands at about 110,000-140,000 people on at once per night, which while being no mean number itself, consists of a large number of bots, or computerized players, programmed to perform tasks which generate in game money to be sold to legitimate players on external websites.
The % of bots was said at the last RuneFest to be around the 30% mark, but since most players have used some form of botting program in the past, it is more likely to be around 50%.
Over the years, there has been a lot of turmoil in game, from free trade and the wilderness being removed, to it being reinstated, to the release of pay-for-perks via the squeal of fortune, a relatively new money making venture by JaGex, instigated by the new owners (Possibly named MMG, I can't remember off the top of my head) whereby players can buy spins on a virtual wheel of fortune, with prizes ranging from experience lamps, to 50 coins, to rare items and weapons (in a form which may not be sold) all the way up to 200,000,000 coins (which admittedly is extremely rare.)
The culmination of these changes has resulted in a player backlash, whereby the forums (and not just the 'rant' forum) are constantly filled with topics and players complaining, wishing the game was how it used to be.
Adding to this, several staff who felt strongly about the future of the game, also being players themselves, quit their positions at the company, including the CEO. (There is a much longer story and this is very watered down.)
But to give a proper response: The game is still very much existential, though internally, it is filled with anger and cheating.
~
I am in no way affiliated with JaGex, I know some of the staff use HN and I don't want to get any of them in trouble, the new owners tend to act first and think later.