The main difference is that you can access the current player using Spark.getPlayer() in a user message but you can't access the current player in a gl...

Yes, you can send emails using the Send Grid integration. We have a tutorial of this that works with a password recovery scenario. Send Grid API Password...

By updating and saving news in a runtime collection your players will be able to receive them in real-time without the need to publish additional snapshots ...

When dealing with system message scripts, it's good practice to be conscious of what scriptData is being set to. For example, in a ChallengeStartedMess...