While I love the thought, what makes Portal the best game is GLaDOS, and the story. Solving the problems quickly took back seat to the GLaDOS interactions and story; I don’t think I’d enjoy a dungeon crawler version of Portal nearly as much without her, and the story.

It’s a big part of why I don’t like MMORGS and combat royals, where it just feels like random characters sprinting everywhere in their own little worlds and no cohesive story. I get why many people do like it, and it’s obvious why studios love the format - they’re just low cost money printers. To each their own!