This thread is related to @KiwiMudCorolla's on old school games.
I was listening to a podcast last week where the hosts regularly interview people from all over tech, and this episode featured a student who had built and sold two "io" games. Now I've played slither.io, but I had no idea that ".io" games were apparently a huge hit and warranted a genre of their own. Just like Armor Games of the Flash era, there are game aggregator sites that gather all of these games together. The one they kept mentioning on the podcast was iogames.space. All of these games are built on modern web technology and most of them use an HTML Canvas which is a "fairly new" web entity from 2014 (at least when compared to Flash).
Thought I'd mention it, as many of these games are multiplayer now that technology has made it easier/cheaper to run these things. I bet I could run one alongside the swamp on the same VM I've purchased and not have significant issues, they're apparently pretty light-weight.
