In Star Trek Catan, players start the game with two small space stations at the intersection of three planets, with each planet supplying resources based on the result of a dice roll. Players collect and trade these resources – Dilithium, Tritanium, food, oxygen and water – in order to build spaceships that connect regions in the galaxy, establish small and large space stations at new intersection points in order to increase resource acquisition, and acquire development cards that provide victory points (VPs) or special abilities.
On a dice roll of 7, a Klingon ship swoops in to prevent resource production on one planet, while taxing spacegoers who hold too many resources.
The one new element in Star Trek Catan compared to the Settlers version is a set of character cards, each featuring one of Kirk, Spock, McCoy, Sulu, Scott, Uhura, Chekov, Chapel, Rand or Sarek. Each character card has two special powers that the holder can use on his turn, such as a forced trade.
via Topless Robot.