Kongregate

I've been playing on Kongregate pretty much daily since I joined in February 2010. There's many perks to the site, including an achievement system which is good for people who are competitive and like to make goals. They also have contests and sweepstakes through the year, a few of which I have won. You have to watch out for trolls and underage users in the chatrooms because they tend to be annoying, but it's simple to click the "mute" and "block" buttons to keep them from getting in your way. All of the mods who I have talked to or observed in the chatrooms are mature, and all of the problems that I have reported were taken care of promptly. There's on-site currency which you can use to purchase in-game items, though it is a bit expensive for my taste. Some of the designers build their games around this so as to push people to buy "Kreds" to get ahead in the game, but those games usually have bad ratings on the site. Speaking of games, there's a huge plethora of them here, in over 30+ genres. So there's something for everyone!

For some reason why they buy a game, It dies. For example surviv.io! They bought one of my favourate games in December 2019. In 2023 it got shut down and made a crappy ripoff! Worst company ever! They made the game infested with hackers, no real updates and only added skins. Now when you type surviv.io in your browser it redirects you to bit heros arena! The ripoff game!