To those who have bought it, I'm considering buying it, but I'd like to know how much more is added to the full game over the demo?
it also supports the creators. if you have appreciated what their vision and quality is then buying the game can either mean getting more quality content and/or getting it sooner. overall i would say that i will have no regrets supporting them in this and future content. we all have an impact on the production.
tldr: buy the game