58BC is a mod for RTW-BI set in the last days of the Roman Republic. It covers the most important victories and campaing of Julius Caesar from the battles against the Helvetii to the final victory at Munda. This is a one-faction only mod. Caesar must survive every battle or the game will end.
Legio XII is formed during 58 BC in the face of the threat posed by the Helvetii, first seeing action at Bibracte. It serves throughout the Bellum Gallicum and later fights at Ilerda, Dyrrhachium, and Pharsalus during the Bellum Civile.