It was good game but no more

I liked playing dark sword, but after wasting so much souls in shop to get unique weapons. And bit even getting a single one from shoo.I feel so annoyed. Not going to play more. P.s- complete d whole inferno difficulty, no unique weapons drop. This game is getting bad and bad

Seems like you've just had bad luck. I've received 4 unique drops on inferno levels and at least 3x that legendary drops. Still a good game, but I can understand the frustration. Best to see it for what it is, amusement.