Here is the full list of all 8 Farragnarok achievements.
You snuffed out the rampant life in Nidhogg's body the only way you knew how.
Wait. What? You can DO that? Hax! I call Hax!
Uh. What. What is THAT!? Was that down there the whole time!?
Unless you know who made this game, you won't know how to get this achivement.
You investigated the Land of Horticulture and Essence
Wait. Who let a DAD name this land???
You truly beheld his scales, you Hero, you.
Wait. What. Why are these....things growing on trees???