Terraria Death's Playground

By day a such lively place,
Even though slimes litter the place,
By night a dark and dreary nightmare,
For you should fear of Death an icy stare,
Bones of long dead arise at last
To devour your mind body and soul so fast,
A playground of Death's design,
Those long lost never read the sign,
Terrifying eyes of demonic beasts litter the sky,
Even in day an odd little fish will fly,
Though this world is not round,
It is still Death's playground