Create a map from scratch

Hi, I’m new to the forum and I am not sure if this is the right place to post…

I was wondering if there is any way to create openstreetmap-like map from scratch? For example if I want to make an openstreetmap (just for myself) of a video game map, is that possible? If yes what are the required tools?


You have first to choose whether you want map tiles as bitmap files, or a vector based map maybe even rendered in real-time.

Do you know the OSM wiki about ?