les ▁series ▁in ▁January ▁ 1 9 9 7 , ▁and ▁assigned ▁S . ▁Craig ▁Taylor ▁to ▁be ▁their ▁producer . ▁G MT ▁Games ▁assist ed ▁in ▁the ▁creation ▁of ▁the ▁series , ▁and ▁each ▁entry ▁was ▁based ▁on ▁one ▁of ▁its ▁board ▁titles . ▁Alexander ▁launched ▁in ▁June , ▁while ▁Hann ib al ▁appeared ▁on ▁November ▁ 7 . ▁By ▁mid - 1 9 9 7 , ▁Inter active ▁Magic ▁had ▁scheduled ▁Ca esar ▁for ▁release ▁in ▁spring ▁of ▁the ▁following ▁year . ▁ ▁Er ud ite ▁based ▁Ca esar ▁on ▁G MT ' s ▁board ▁w arg ame ▁The ▁Great ▁Batt les ▁of ▁Julius ▁Ca esar , ▁but ▁built ▁it ▁with ▁a ▁modified ▁form ▁of ▁the ▁mechanical ▁game ▁system ▁it ▁had ▁previously ▁used ▁in ▁Alexander ▁and ▁Hann ib al . ▁To ▁simulate ▁the ▁Marian ▁tact ical ▁re forms ▁that ▁occurred ▁after ▁Hann ib al ' s ▁defeat , ▁the ▁team ▁alter ed ▁the ▁series ' ▁mechan ics ▁to ▁change ▁the ▁basic ▁unit ▁from ▁the ▁manip ular ▁leg ion , ▁with ▁its ▁three ▁lines ▁( h ast ati , ▁princip es ▁and ▁tri ari i ) ▁of ▁inf antry , ▁to ▁the ▁more ▁hom ogeneous ▁Marian ▁leg ion . ▁However , ▁Er ud ite ▁sought ▁" only ▁slightly " ▁to ▁represent ▁the ▁many ▁tact ical ▁changes ▁during ▁this ▁era , ▁such ▁as ▁by ▁m im ick ing ▁the ▁expansion ▁of ▁Rome ' s ▁chain ▁of ▁command ▁via ▁the ▁inclusion ▁of ▁section ▁command ers . ▁Ca esar ▁shares ▁its ▁prede cess ors '