Is this a viable alternative to vacation mode? Trying to think of something that will work to protect empires that are unable to access the game due to forced real life stuff without being exploitable.
Have a stasis field affect an empire a number of ticks (12 or 24 suggested depending on the galaxy/round length) after the last login. All production pauses. The empire is unable to be attacked. It affects all empires. The field is removed automatically on login. This would result in an active player that logs in several times a day never being affected, but if an emergency happens their empire is safe until they return. Inactives could be removed from fixed length galaxies with a bit of tweaking the current setup, taking activity up to date into account.
Made a couple of edits to add details and change the title so I’d get some sort of feedback, good or bad.