Death of protagonist
One or more of the main characters die as part of the plot, especially in case of the protagonist.
Alternate name: Death of a main character
The first video game about Death of protagonist was released in 1988.
In rare cases, this is not a spoiler. It is sometimes made clear in the game manual and game itself that the player will be directing the protagonist's life to its rational end (often death of old age/natural causes).
Antagonists should not be considered for this tag, even though they're main characters in the overall plot.