The Ruby is a valuable gemstone that can be mined and acquired in the Frontier. Ruby veins can appear in various places, most notably being found in abundance at the anthills of Red Ant Cove. Rubies can also be dropped or rewarded from other sources that include the following:
- 5% drop rate from Ancient Iron Knight
- 10% drop rate from Egg Snatcher
- 5% drop rate from Fantastic Dragon
- Up to 5 Rubies from Lava Munsk (85%, 2x 10%, 7%, 5%)
- 7% drop rate from Magma Bat
- Up to 2 Rubies from Magma Knight (2x 35%)
- Up to 3 Rubies from Red Croc Man (85%, 55%, 20%)
- Up to 4 Rubies from Redman (75%, 4%, 2%, 1%)
- 2% drop rate from Pirates
- A possible drop from Red Dragonbirds.
- A possible reward from the Firefly Quest.
- A possible reward from the Otherworld Tower.
- A possible reward from the Otherworld Present.
- A common 'gift' from the Interdimensional Traveler.
Rubies are not used in any recipes nor is it needed by any task-givers. Players may sell a Ruby to a selling vendor at a sell price of 3,000 gold.