Sid Meier's Civiliazations VI is a turn-based strategy game, where your goal is to lead your fledging civiliazation from an early settlement through many millennia to become an world power and achieve one of the several winning conditions, such as through military power, technological superiority, or cultural influence on other players.
As an save game will most probably take longer than time will be available in the evening, the save game can be continued on other days or on a weekly basis.