Thank you for your kind reply! Indeed, I played a very early version, a free alpha version if I remember correctly.
Yes you have right it was very very early version of the game shared for free during indiegogo campaign, and since there there was like giant changes in game :) Added mining crystal, bioweeds, totally camera system change we have been working for 2 years more after that demo on polishing the game :)
I'm happy that you also interested in The End of The Sun :) Even if you know nothing, you probably now The Witcher 3 that was highly based on slavic culture and mythology, I would say most of creatures there are from slavic myths. But overall our game is story driven game, so probably will be good for anyone who likes good story / myster / puzzle and detective games :)
I could give you access to full quality soundtrack too ;) As first purchaser.