Unique tech: bohemian rhapsody. All current members of the population call to their mama and gain 15 hp.
Enemy is notified by a very sonorous alert
It goes something like:
“Sudden bolts of lightning
Very, very frightning!”
I thought it would be Defenestration: all enemies inside your base are moved to outside your walls and take fall damage in the process.
But maybe that’s the Castle Age one.