EVE Online
Genres: Massively multiplayer online role-playing game, Strategy video game, Action ...
Ultima Online
Genres: Massively multiplayer online role-playing game
Dragon Quest X
Genres: Massively multiplayer online role-playing game, Adventure game, Action game ...
EverQuest
Genres: Massively multiplayer online role-playing game, Free-to-play, Adventure game ...
Final Fantasy XI
Minecraft
Genres: Survival game, Action-adventure game, Nonlinear gameplay
Overwatch
Genres: First-person shooter, Fighting game
PUBG
Genres: Battle royale game, Shooter game, Massively multiplayer online game, Action ...
RuneScape
Genres: Massively multiplayer online role-playing game, Entertainment, Speculative ...
Second Life
Genres: Virtual world, Massively multiplayer online role-playing game
Star Wars: The Old Republic
Genres: Massively multiplayer online role-playing game, Adventure game, Free To Play ...
All subscription based games. Some pretty big players there too. Subscription based games are not done, it is alive and well in the gaming industry.
What Ive found in my meager attempts to get the "Aces High" name out there many have either never heard of it, or didnt think it was still around, after all 20+ years is a heck of a run for a game. 
I think what is needed is just to get the word out there. I love when a commercial pops up on FB for "War Thunder". They leave the posting option on so I post 
I post how AH is so much better with 24/7 continuing battles going on and for a monthly fee you get ALL the planes and vehicles. I know a few players have come over from those posts. The same goes for reddit. Most of those guys that were interested didnt know about or think AH was still available. I havn't posted there in a while due to a rule about having to post in other threads to earn the right to open new threads. EVERYONE needs to get the word out there.
Now, could HTC run a "sale"? It would have to be tied in with one of those gamers influencers. Get them to run a video about AH and with a coad get the first 3 months at $9.95 a month like most TV subscriptions, everyone has a crap load of them 
Maybe do something similar on Steam.
But again the whole thing relies on Hitech WANTING to get the game rolling again. At this point he has "Greebo" doing the skins approval process, he has "Kenai", "Kong" and others doing the maps, and the Scenario guys building and running all the events and posting the points/scores, and "Spikes" on the webpage updates. For all that stuff he is pretty much hands off until its all put together then he adds it to the game. Someone mentioned hes in his 60's and maybe he doesnt want to be bothered any more. I can understand this. I spent years repairing vending machines including pinballs and loved the challenge of it. I retired over a year ago and can say I dont miss it..... well except "testing" the pinballs 
For those of us addicted to the game we hopr Hitech comes back, but in reality it most likely isnt going to happen. The best we can do is do what we can to get the word out there, hope one of us wins the lottery, and just enjoy what we have for as long as we can. I know I will continue to push for AH, I'll keep making videos, I'll keep posting help and adding to my "help" page as things come up. At 67, Im still going to do what little I can for Aces High, how about you?
I'm confused. You said these are subscription game but some say free to play in the title and my kids play mine craft and I don't pay a subscription for that.
I've posted on other games forums like IL2 promoting AH and events like sceneros. It comes up from time to time in the games I currently play but the discussion seems to stop as soon as the sub is mentioned. I do what I can
