Game progress is periodically (usually every 5 to 15 minutes) saved without any action from the player needed.
Alternate name: Timed autosaves
The first video game about Periodic autosaves was released on September 1997.
The most important part is that the saves occur every n minutes or seconds.
Autosaves that occur at specific locations instead of being triggered by some timer should be marked with autosave points instead.
Autosaving at the end of timed mission/level is the same as autosave point, so autosaves does not cover them either.
Autosave at the start of a mission/level falls also under autosave points.