The first is the German version, which was gecuttet to some items that are really important for the actual atmosphere of the Games.
Quote from the product description:
"Saboteur is completely uncut in Germany! The game is the same as for example in relation to the degree of violence. The US or UK version. There were only removed unconstitutional symbols."
The 2nd is the US version.
The 3rd option is the UK version, which continues to be supported nor French, Polish and even a language. German at least sometimes not (according to the description). Your still can here quite relaxed for UK version grab, the game will be loaded (including the symbols) Uncut, however, is entirely in German, with English subtitles, the German language edition of the cut version corresponds, as you here probably understandably not wanted to make the effort a 2nd synchronization for the other German-speaking countries.
So who wants to have the German Uncut Version (which I put it out with each Vvolljährigem gamers ahead) can look at Schnittberichte again, where exactly are the differences between cut and uncut.
For 4.99 including Uncut an absolute bargain if you can get involved in the game scenario and want.