Full list of all 13 Phantasy Star Universe achievements worth 1,250 gamerscore. It takes around 25-30 hours to unlock all of the achievements in the base game.
The base game contains 8 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 5 achievements worth 250 Gamerscore.
Defeated De Ragan.
Defeated Adahna Degahna.
Defeated De Ragnus.
Defeated Magas Maggahna.
Defeated Dimmgagolus.
Defeated Dulk Fakis 2.
Defeated Dulk Fakis.
Defeated Onmagoug.
Dark Falz defeated.
Mother Brain defeated.
Dark Falz 2 defeated.
De Rol Le defeated.
Alterazgohg defeated.