I've made a better introduction video that actual explains the game rather than the old silent film one. It's embedded in the details section.
The next video will get into a bit more of the detail of the map making process. Speaking of which:
There is also another new map in the repository map4.csv, we're up to 5 total now. I still want to make some more, but I'd also love to include some community maps if anyone else wants to create some.