What does a Game Engine actually do?

If you're interested in the math behind the first-person rendering algorithm, this tutorial was incredibly helpful: https://lodev.org/cgtutor/raycasting.html Patreon: https://www.patreon.com/ellie_rasmussen 00:00 - Intro 00:46 - Basic Game 04:27 - More Mazes, Bigger Mazes 06:26 - Map List 07:56 - Non-linear Map List 11:10 - Colors 12:40 - Renderer 15:17 - Final Game