Frogster, the European publisher of TERA, has released a couple videos that show off some of the creepier areas in the game. Arachnaea is a breeding ground for the ghastly Arachens, while the castle at the peak of Mount Tyrannas is filled with all sorts of evil things.

Even though G4TV posted the Mount Tyrannas trailer last week, we're sharing it again since it pairs perfectly with Arachnaea. Check out both trailers and some lore after the jump!

Arachnaea Trailer

The terror of the undead and the spider-infested caves of Arachne await you in the far-flung corners of TERA’s world. Explorers beware, for the perils you face inside these caves pose two very different and all together terrifying threats. Deep within the forests of TERA lies Arachnaea, a breeding ground for the ghastly Arachens, summoned by the evil goddesses Archne’s loyal party of sinister priests. Local villagers live in terror as the Arachens thirst for flesh and sacrificial offerings mean friends, neighbours and family members are all too frequently dragged into the abyss, never to return.

Mount Tyrannas Trailer

Something truly unholy and horrifying awaits you at the peak of Mount Tyrannas. The air, ripe with the stench of rotting flesh, cannot prepare you for what lies inside the castle looming at the mountain’s peak. As you venture deeper within the castle’s walls, the undead’s wailing and thirst for blood are the least of your worries as you begin to unravel the castle’s sinister past. Pay heed to these warnings and steel yourself for the tortures that lie ahead, for only the strongest will make it out alive.