Talk:Observatory/@comment-75.91.235.3-20180926131700/@comment-34301539-20180928010049

Mechanical hearth is an artifact you can run together with other artifacts like the flaming disk etc., Usually I use it after fnishing the play for the day, to have the energy restored completely for the next day. There are several boosts that can be run together. For more inforamtion look at the boost page.