Can I log in with my RuneScape account?
Not yet, again this is something would look into if there is a lot of demand for this feature.
Can I log in with my Facebook or Google account?
Not at the moment.
Can I play Chronicle and RuneScape at the same time?
Yes. While Chronicle is set in RuneScape its systems are largely separate, meaning that you can be logged into and playing both games simultaneously.
Can I talk to other Chronicle Players in game?
You can only communicate with your opponent via pre-set emotes in game. There is no dedicated in-game chat available in Chronicle.