To the question “how long have you been working on Turovero”, the developer answers “the actual development process took around 2 and a half years”.
And it took me 30 hours to play it through.
Tip: campfires, where you replenish your health and mana, and shops don’t pop up often in this game. Therefore, when you arrive to a campfire, it’s a good strategy to grind a bit for money and buy items in the shop before you leave for the next floor.
(Which I didn’t at first, and was forced to go back to an old save and replay a couple of hours.)