[PC] [2005~] [3d top-down (I think)] Medieval-knights kinda Game.
Recently I remembered about this game that I played when I was a teenager, It was a RPG, you had to find/buy from npcs stronger weapons, armors, accesories, kill enemies and advance to new areas. it was pretty linear. I know this is very common and vague but I don't remember much about the game. However I remember two core things about the game that might help y'all find what i'm looking for.
The final boss was in a hidden area behind trees/bushes. You couldn't save the game after beating this boss so all you could do is load the game again and beat him again or go back to previous zones.
Other thing I remember is this bug to make money that the game had with a precious stone (think it was emeralds but i'm not sure, could be rubies, diamonds, topaz) you would buy the entire stock from a npc for a price and then sell it to another npc for a higher price.
Thats all I can remember, hope somebody can help me with this game, thanks y'all!