Flag
From VNDev Wiki
A flag is an instance of a noteworthy condition/action being taken by a player that is recorded and saved as part of an instance of a game. Flags (often in multiples) are used to determine the various outcomes of events based on prior actions taken, and may have 2 or more states. A flag that, once triggered, eventually and inevitably leads to the player character or supporting character’s death is called a death flag. Telltale’s famous “Clementine will remember this.” notifications are an example of a tripped flag being overtly stated to a player.