Looking very promising. I'm hoping that there will be a way to get a steam key outside of steam like how Carnal Instinct has done it for example. As others have pointed out in some countries it's not possible to visit the shop page for games like this on steam. It is however possible to activate a key if you can get one.
I would like to support you with a one-time payment if that means getting a version that keeps getting updated as time goes on. Paying monthly on Subscribestar is not an option especially since Subscribestar requires a credit card.