The Thinker's Box is one of the many monster drops that can be acquired in the Frontier. It can be purchased from Linkman the Junkman at a price of 175,000 gold. Other viable methods of acquiring the Thinker's Box include the following:
- A possible gift from the Otherworld Present.
- A possible reward from the Firefly Quest.
- A possible reward from a Treasure Chest.
- A possible reward from a Grand Treasure Chest.
- An 'uncommon' drop from the following mobs:
- A 'rare' drop from the following mobs:
In appearance, the Thinker's Box appears to be a cube that strikes a 'danger signal' to the players' conscious minds. Weird, unnatural-looking figures can be seen at the very top of the cube. Other than that, not much can be said about its overall appearance.
- It may be a reference to Pandora's Box.