Disclaimer: I'm not the creator of OneSignal I just integrate their SDK for GameMaker Studio
Notify your players with a customized push notification with this awesome sdk
The OneSignalv2.5.0.gmez file is on Included Files so you have to import the extension manually from the Included FIles(To know the extension file path just click the .gmez file and press SHIFT+O and the copy that file path)
OneSignal is a super flexible service where you can send push notifications to all of your users to inform updates, news or any information that you want to inform.
You can customize everything of your notification such as:
All the English documentation is under construction, I'll leave a YouTube video explaining how to use it on GMS1.4 but is in Spanish.
The SDK has been tested on 2k+ Android Users, only for Android so far
IOS work in progress.
Just go to OneSignal website, register, use this extension and start sending notifications!