📄️ Introduction
Most of this information comes from Kuitar's guide here - https://docs.google.com/document/d/1oPPV4U8iq8yjarE_9EyDScY3UkHUY2ZKX5vHazkcXCc
📄️ Other Resources or Guides
I'm not the first person to have made a tutorial on this. I'll link here other tutorials that I know of as well as places to learn about other things that I won't cover here.
📄️ Level Design
This part is mostly here to indulge myself in some random rambling. However, if you're not too sure what might make a Jak level a "Jak" level, then maybe this could interest you.
📄️ Making Your First Level
As mentioned earlier, I'll personally be using GitHub to host and review this project, it'll also allow you to copy it to look at things in a much closer fashion so you can adapt stuff into your own project. I'll be basing it from the OpenGOAL mod base available here. I'd suggest you use this one as a template.
📄️ Actors
Common Actors
📄️ Custom Actors
While still in early stages, the "Build Actor" tool allows you to take a mesh created in Blender and import it into the game to use for your own custom actors in custom levels.