It ' s still selling good in EU and JP . It ' s the 3 rd top seller in Japan , and 4 th in EU . <| sep |> Skyller p dialekt <| sep |> Marcus plays SGPF and you cannot convince me otherwise . <| sep |> Cold is pretty easy to deal with . Titan has much greater quantities of water and other lifesupport volatiles than Mars , basically everything we need . Even Zubrin thinks so . It ' s probably a bit low on heavy elements like metals , but a lot can be done with carbonbased plastics . And water ice would make a nice structural material , very easy to pour into molds . I haven ' t been able to find specific numbers about the radiation environment on Titan ' s surface I ' m sure Huygens measured it but Google is being unhelpful , but I expect it ' s much lower than on Mars . Thick atmospheres provide a good shield against that sort of thing and Saturn ' s radiation belts are a lot tamer than Jupiter ' s . Titan ' s gravity well is less than Mars '. Though the atmosphere is a major impediment to launching , it makes landing much easier . Maybe use for launching ? Or a spaceplane that uses liquid oxygen fuel to burn ambient atmospheric methane I suspect the methane in Titan ' s atmosphere is too low a concentration for this , but who knows .