closed as not constructive by jcora, Josh Petrie♦, Noctrine♦ Jan 21 '13 at 16:54
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I've also seen many games that are pretty much just static images and web forms for the UI and the server simply constructs different static HTML pages in response to the player clicking on the buttons.
Up until recently Unity used to be another format for browser games. However the latest version of Unity actually deploys Flash content, making Unity games a special case of Flash games.
The only other format I can think of that has any impact whatsoever in browser games in Java, because that's what Puzzle Pirates used (and even that I'm not 100% sure about). That is a single game that came out years ago, hardly worth worrying about.
But then again, Java is insecure, as we already know safari has blocked Java 7.
Good luck on your new site!
Plug-in based technologies are easy to embed. Usually, a game will be packaged in a single file that will be served through HTML via a simple
That was the easy part, but plug-in based games are only one side the ecosystem. If you really want to support the widest possible spectrum you'll have to consider other things. HTML5-based solutions are hot today, they are standard, and they can prove worthwhile. But they will be much harder to embed, typically requiring some
Google Native Client might just be the modern ActiveX but it is used in some very interesting browser-based games in the Chrome Web Store.
Last but not least, lots of good games are not very advanced on the client-side, and will do most of the interesting stuff from a PHP/MySQL server (typically). So you might have to consider an offer for server-side hosting (something that is definitely compatible with lots of client-side technologies).
You're not interested in file formats. There are many types of those, and usually it's just text or some other binary format you shouldn't concern yourself over. You're interested in technology.
The client's browser has to support various technologies.
Unless, of course, you're talking merely about online games, not necessarily on the WWW. For that, there are various combinations, and that makes this question too ambiguous.