The Frontier Stone is a monster drop that can be obtained in the Frontier. Viable methods of acquiring the Frontier Stone include the following:
- A possible drop from the Green Ghost.
- A possible 'rare' drop from the following mobs:
The Frontier Stone's color schemes are based on the three common recurring colors of the frontier: red, blue, and yellow. On top of the Frontier Stone, there is a pendant which is gray, green, and yellow in color. The figure itself is made of stone and stands on an octagonal stone pedestal with glowing green lines which climb to the top of the pedestal. The pedestal is positioned on a thin platform of a black material, surrounded by alternating tabs of red, yellow, blue, and gray.
It is possible for players to exchange the Frontier Stone for gold during Slayer's Tasks if the task card is currently active. Other than that, it can be sold to a selling vendor at a selling price of 250,000 gold.
- Before the Otherworld Update, the Frontier Stone was claimed to be one of the hardest monster drops to get as it could only be acquired from the Green Ghost.