Normal Weapon Collector

[Methuselah]

I have all 29 normal weapons but there is no achievement

[Poyzo]

Sure you didn't count any boss weapons?

[Methuselah]

As i mentioned "normal weapons" and not "special weapons", so no, I did not count any of the boss weapons. Also, there are 29 normal weapons and 10 special, so total is 39 not 29.

[Methuselah]

One thing to mention, I addition to the Greatsword of Fate that I got when I start, I also purchased a copy from the Wandering merchant in Cerasani Alley. Does that mess up the achievement? What else I can do? Play in NG+, collect all and MAYBE the achievement will show up?

[Jont828]

I have the same problem but for Special Weapon Collector. Got all 11 but no achievement still.

[Niras]

Normal Weapon Collector showed up for me somewhat late. After checking achievements tab it showed notification 5 sec after lol

Check how to get Blind Man's Double-Sided Spear
It's quite tricky to find and it's the most likely your missing normal weapon