Guild Wars 2

The Giant Slayer achievement says i killed only 1 giant since the begining of the game.
That is simply not possible… i was running on Cursed Shore too many times doing Arah event, killing giant in Arah dungeon and just to be sure yesterday i killed some free walking Veteran Giant, but nothing has changed. Some of my friends in guild got the same problem, others dont, so i dont know what to think about it.

Thank you.

As far as i know its not bugged, the enemies you mention would be classified as undead and not giants even though they are called giants. There are only 2 areas that i know where you get kills for giants and they are both dynamic events. The first one is Kol in Hinderlands, and the other one is some giant that attacks a charr outpost in the 15-25 charr explorable zone.

It might still be bugged: while there are other giants besides the two mentioned above, apparently you still need to kill 1,000 to max the title. Seems more difficult to achieve than the other slayer titles by 2-3 orders of magnitude.