From their site: Have a web page somewhere? Take any of our games and put the game directly into your page. Sometimes it's fun to play by yourself. Usually it's more fun to play with other people, even if you're just competing for the best score. That's why we also provide the back-end infrastructure that makes it easy to create Macromedia Flash-based multi-player, networked games. You don't need to worry about managing users, games, databases, servers, data storage and routing, presence, chat, or any of that other stuff. Write to our ActionScript API or use one of our frameworks, and we handle it all for you, for free. Leaving you to concentrate on creating a great game.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.