Here is my mind map of the game I'm choosing to develop for my capstone in Unreal, Italian Police - Third Strike. For the mind map I focused on three core aspects of the game the mechanics, gameplay, and theme.
Mechanics - So I continued to narrow down the main mechanics of the game. Since it's an infinite runner where you're chasing down a criminal, speed and maneuvering are to play big roles. Maneuvering includes actions that the player can do, which is just jumping for now, and jumping is how the primarily avoid obstacles. With speed the player can either lose or gain speed, if they hit something they lose speed, if they don't hit things then they gradually get faster.
Gameplay - Gameplay I initially broke down into chasing and evading. Evading is simple as you avoid obstacles in the game world, like cars, other people, and food that was thrown on the ground or at the player. Chasing is very simple as you only chase the criminal.
Theme - I have to be honest, theme was something I might've been pushing the envelope on a bit. So the theme is Italian for the most part, everything is kind of influenced by this. The characters, setting, objects are all affected by this theme of Italian.