A Let's Play (commonly referred to as an LP) is a style of video (or a screenshot accompanied by text) series documenting the playthrough of a video game, usually including commentary by the gamer. A Let's Play differs from a video game walkthrough or strategy guide by focusing on an individual's subjective experience with the game, often with humorous, irreverent, or critical commentary from the gamer, rather than being an objective source of information on how to progress through the game.
I had never heard that term. To save others the time of googling it:
https://en.wikipedia.org/wiki/Let%27s_Play
A Let's Play (commonly referred to as an LP) is a style of video (or a screenshot accompanied by text) series documenting the playthrough of a video game, usually including commentary by the gamer. A Let's Play differs from a video game walkthrough or strategy guide by focusing on an individual's subjective experience with the game, often with humorous, irreverent, or critical commentary from the gamer, rather than being an objective source of information on how to progress through the game.