Reading Different templates for nested sections?, it seems there is no way to assign a specific layout for a nested section, wether layout and/or type are set in front-matter.
Using content/systems/3do/games/alone-in-the-dark/index.md with type: game enables me to use layouts/game/single.html as a template. I’m unsure if it is the right way to go though as it makes fetching sub pages more complicated.
I suspect a Single Page is considered to be a leaf in a content tree. Is that why I can’t list the reviews and ratings in this tree? (it is alright if index.md is named _index.md).
content/systems/3do/games/alone-in-the-dark
├── images
│ └── main.jpg
├── index.md
├── ratings
│ └── chaos-blaster.md
└── reviews
└── okkazoo95.md