Heartbeat of Steam Golden Age:
+10% Production toward Industrial era and later wonders. Campus district's Science adjacency bonus provides Production as well. Industrial zone district's Production adjacency bonus provides Science as well.
Normal Age
Heartbeat of Steam Dedication Bonus:
Gain +1 Era Score for each Industrial or later building constructed.
Dark Age
Heartbeat of Steam Dedication Bonus:
Gain +1 Era Score for each Industrial or later building constructed.