We've played Pay Dirt a few times over the last few months. Pay Dirt is a worker placement game for up to five players and we've enjoyed it each time we've played. There are three items to bid on each turn - claims to mine, equipment to process the claims, and workers to man the equipment. I've been told that the characters in the game are from the TV show Gold Rush.
Each turn, you typically get one of the items to build your engine. The objective is to produce gold pieces (which act as the victory points for the game, but can also be sold for cash to increase your ability to bid in the bidding phase). The game has a great mechanic called the "Hardship Phase" to help prevent someone from running away if they are winning.
In all, I've enjoyed the game each time we've played. It is a good length game, with a well-paced middle and end game. It has great components, although some of the smaller pieces are a bit fiddly. I recommend it if you like engine-building and worker placement games.