It seems like games which requires much resources, can kill Kontalk background service. Any workarounds?
Not actually, unless you create a foreground service:
This is the kind of service used by ongoing activities, such as music playing or an ongoing download. The problem is you get a sticky notification if you activate this mode. You can hide the icon from the status bar by giving the notification a low priority, but it will show up when you expand the notifications panel.
I’ve opened an issue for that, it’s a relatively easy task, I’ll try to make it for 4.1.0.