This software enables the user to design different types of electoral systems which can then be tested and compared on the basis of a multitude of randomly generated elections results. For each result, seats are allocated and the results expressed as averages together with corresponding statistics. Furthermore, several quality measures are calculated, making it possible to rank the election systems in terms of their qualities. The simulator is mainly intended for bidimensional elections, i.e. parliamentary elections with constituencies and parties, but it can also be used for one dimensional elections, like elections to municipalities. The focus is on proportional representation with multimember constituencies and two types of seats; pure constituency seats and adjustment seats tied to the constituencies. The adjustment seats can also be on nationwide party lists. Elections in one-man constituencies can also be addressed.