So many of us have kids that are hyper-focused on games. So here's an example of both an essay and how-to write and organize an essay for a kid who loves gaming (written for my son).
One of the problems is the word "essay" -- once we have the skill of "writing an essay" down it ends up being used in emails, in brochures, in business plans, in letters of request or recommendation -- the same skills we call "essay writing" in school is even used for short-form facebook posting through to long-form thesis or dissertation writing. But we call it an "essay" which makes it daunting. We could call it "Writing an Instruction Manual for a Game System". We could call it whatever -- it's just "good writing technique". Or if you will a "sandwich writing technique". Or best of all "writing for the reader".