From the early pre-production to release, Anytown is an open process game project. All of the development process is transparent and all design and production documents are universally accessible. You can browse our Project Folders & Docs to understand what is going inside the project. Also, you can write comments for the document parts to share your game ideas. We are recommending you to start from our Game Design Document first.
Also we are sharing a Indie Survival Guide For Game Developers @ Turkey that recommends a list of books, websites and much more about game design. Follow this guide to understand more about what is going inside here. Also all of these resources are the humble steps of surviving as an indie game developer.