Free to play business model

Last Friday I had a good time with the guys at betabeers Huelva. There were some interesting talks about GODOT engine, video game communities and Unity 3d. I was talking about free to play and how different it is to traditional market. I'd like to share the presentation with you:

Free to play como modelo de negocio

Also, I have translated it to english

Free to play as business model

The idea was to make you take a look at the market before starting working on something for months that will end on a failure :) Let me know yout thoughts