' s ▁best - s elling ▁computer ▁game ▁of ▁all ▁time ▁as ▁of ▁December ▁ 2 0 0 2 , ▁with ▁sales ▁of ▁ 2 . 5 ▁million ▁copies ▁world wide ▁and ▁ 1 . 7 ▁million ▁in ▁the ▁German ▁market . ▁Its ▁sequ el ▁broke ▁its ▁sales - speed ▁record , ▁becoming ▁Germany ' s ▁fast est ▁full - price ▁computer ▁game ▁to ▁reach ▁ 5 0 0 , 0 0 0 ▁domestic ▁sales . ▁It ▁ultimately ▁sold ▁over ▁one ▁million ▁units ▁in ▁German - spe aking ▁countries , ▁and , ▁when ▁combined ▁with ▁its ▁prede cess or , ▁reached ▁ 4 . 5 ▁million ▁sales ▁world wide ▁by ▁October ▁ 2 0 0 6 . ▁ ▁Tit les ▁ ▁Main ▁series ▁ ▁Sp in - offs ▁ ▁An no ▁ 1 7 0 1 : ▁Da wn ▁of ▁Disc overy ▁( 2 0 0 7 ) ▁A ▁video ▁game ▁for ▁the ▁N intendo ▁D S , ▁and ▁spin - off ▁of ▁the ▁series . ▁ ▁An no : ▁Create ▁A ▁New ▁World ▁( 2 0 0 9 ) ▁A ▁video ▁game ▁for ▁the ▁N intendo ▁D S ▁and ▁the ▁W ii , ▁known ▁in ▁North ▁America ▁as ▁Da wn ▁of ▁Disc overy . ▁ ▁An no ▁Online ▁( 2 0 1 3 – 2 0 1 8 ) ▁A ▁free - to - play ▁browser ▁game ▁( sh ut ▁down ▁in ▁January ▁ 2 0 1 8 ). ▁ ▁An no : ▁Build ▁an ▁Empire ▁( 2 0 1 5 )