Great to hear you’re working on this Geoffrey 
I’m not the OP, but personally I would love to see a tutorial series of something other than a game - whether it’s something like a flickr clone, twitter, chat, Tiktok even 
basically something that people are likely to want to build using Phoenix (I’m not sure many people will be using Phoenix for a game?)
Regarding the format, again this is just personal preference, but I prefer something that is structured, rather than something more like a stream - I’m not good at watching long videos and so generally prefer something more succinct and with just the info I need. What you could do tho is make videos of you working through things/the problem available as well, in case people would like to go through them. I thought PragDave found a pretty good balance in his video course (elixir-for-programmers-course)
These are just my personal preferences tho and I expect there is probably enough people who would prefer either type 
Good luck and keep us posted!
