--- title: Online Services brief: This manual explains how to connect to different game and backend services. --- # Game services Using HTTP requests and socket connections allows you to connect to and interact with thousands of different services on the internet, but in most cases there's more to it than simply making an HTTP request. You usually need to use some kind of authentication, the request data may need to be formatted in a certain way and the response may need to be parsed before it can be used. This can of course be done manually by you but there are also extensions and libraries to take care of this sort of thing for you. Below you'll find a list of some extensions that can be used to more easily interact with specific backend services: ## General purpose * [Colyseus](https://defold.com/assets/colyseus/) - Multiplayer game client * [Nakama](https://defold.com/assets/nakama/) - Add authentication, matchmaking, analytics, cloud save, multiplayer, chat and more to your game * [Photon Realtime](https://defold.com/assets/photon-realtime/) - Photon Realtime offers scalable solutions for essential features such as authentication, matchmaking, and fast, reliable communication. * [PlayFab](https://defold.com/assets/playfabsdk/) - Add authentication, matchmaking, analytics, cloud save and more to your game * [AWS SDK](https://github.com/britzl/aws-sdk-lua) - Use Amazon Web Services from within your game ## Authentication, leaderboards, achievements * [Google Play Game Services](https://defold.com/assets/googleplaygameservices/) - Use Google Play Game Services to authenticate and use cloud save in your game * [Steamworks](https://defold.com/assets/steamworks/) - Add Steam support to your game * [Apple GameKit Game Center](https://defold.com/assets/gamekit/) ## Analytics * [Firebase Analytics](https://defold.com/assets/googleanalyticsforfirebase/) - Add Firebase Analytics to your game * [Game Analytics](https://gameanalytics.com/docs/item/defold-sdk) - Add GameAnalytics to your game * [Google Analytics](https://defold.com/assets/gameanalytics/) - Add Google Analytics to your game Check the [Asset Portal](https://www.defold.com/assets/) for even more extensions!