Rusty coins

Rusty coins are coins used in Dungeoneering and were introduced to the game with the money pouch update on 6 December 2011, replacing the normal coins previously used in Daemonheim.

The only use coins have in Daemonheim is to buy items from the Smuggler. You can ask about them from the Smuggler, he says: "Oh, they're nothing. You can give them all to me, if you want."

The examine, which is "They make the world go round" is a reference to the common idiom used in the real world, "Money makes the world go round".

Trivia

 * As one of the least-reactive metals, gold cannot actually rust; only oxidize. In order to rust, a compound would have to contain iron elements. Therefore, as stated in the FAQ for the update which released them, the coins in Daemonheim are not composed of gold, but rather of a material similar to novite (or novite itself).