, ▁which ▁couldn ' t ▁be ▁achieved ▁with ▁the ▁Bl ades ▁of ▁Ex ile ▁system . ▁ ▁Spider web ▁Software ▁has ▁released ▁the ▁source ▁code ▁for ▁the ▁editor ▁and ▁allows ▁others ▁to ▁make ▁en hanced ▁versions ▁and ▁add - ons , ▁which ▁a ▁number ▁of ▁players ▁have ▁done . ▁The ▁most ▁notable ▁adaptation ▁of ▁the ▁editor ▁is ▁a ▁ 3 D ▁editor , ▁which ▁allows ▁the ▁user ▁to ▁view ▁and ▁edit ▁a ▁project ▁using ▁ax on ometric ▁in - game ▁view . ▁ ▁A ver num : ▁Second ▁Tr il ogy ▁ ▁A ver num ▁ 4 ▁A ver num ▁ 4 ▁was ▁released ▁for ▁Mac int osh ▁in ▁late ▁ 2 0 0 5 ▁and ▁released ▁for ▁Windows ▁on ▁March ▁ 2 , ▁ 2 0 0 6 . ▁It ▁makes ▁use ▁of ▁the ▁Gen ef orge ▁engine ▁and ▁mer ges ▁it ▁with ▁the ▁A ver num ▁engine ; ▁essentially ▁this ▁means ▁that ▁the ▁game play ▁is ▁entirely ▁turn - based , ▁but ▁uses ▁the ▁Gen ef orge ▁point - and - click ▁navigation ▁and ▁user ▁interfaces . ▁In ▁addition , ▁there ▁is ▁a ▁large ▁amount ▁of ▁new ▁art ▁in ▁order ▁to ▁bring ▁the ▁world ▁of ▁A ver num ▁to ▁life ▁within ▁the ▁re work ed ▁Gen ef orge ▁engine . ▁ ▁A ver num ▁ 4 ▁takes ▁place ▁long ▁after ▁the ▁other ▁games ▁– ▁one ▁of ▁the ▁dialog ue ▁options ▁remarks ▁that ▁the ▁events ▁of ▁the ▁third ▁game ▁happened ▁" before ▁we ▁were ▁even ▁born ". ▁We ird ▁mon sters ▁have