Hello MatPat I've been a fan for a long time and you're one of my favorite youtubers , if not you're the favorite 

I've been longing for you to make a theory about a series of games called cube escape which are developed by Ruaty lake, I thought you could make a theory about it espacially since we're going to get two new games later on this this year by Rusty lake

It would be a really fun and interesting theory and it would give the cube escape series the recognition it needs to have , and it would appeal to a lot of your fans espacially the ones who are into horror games and puzzles

So please I hope you could make my little dream happen

Here's the link for the developer's website http://www.rustylake.com

P.s. I love your content and I will always support you no matter what