▁they ▁are ▁able ▁to ▁discover ▁the ▁secre ts ▁of ▁the ▁lab yr inth , ▁expl or ers ▁would ▁stop ▁coming ▁to ▁Et ria ▁and ▁the ▁town ▁would ▁no ▁longer ▁prosper . ▁However , ▁the ▁player ▁defe ats ▁the ▁two , ▁and ▁confront s ▁Vis il ▁deeper ▁in ▁the ▁lab yr inth . ▁Vis il , ▁who ▁was ▁actually ▁the ▁imm ort al ▁lead ▁research er ▁who ▁created ▁the ▁Y gg d ras il ▁Project ▁to ▁restore ▁the ▁planet , ▁mer ges ▁with ▁the ▁core ▁of ▁Y gg d ras il , ▁becoming ▁the ▁E tre ant ▁in ▁order ▁to ▁protect ▁Y gg d ras il . ▁However , ▁the ▁player ▁defe ats ▁him , ▁destroy ing ▁Y gg d ras il . ▁ ▁Game play ▁▁ ▁Draw ing ▁compar isons ▁to ▁titles ▁such ▁as ▁W izard ry ▁and ▁The ▁B ard ' s ▁T ale , ▁E tri an ▁Od ys sey ▁challeng es ▁players ▁with ▁expl oring ▁and ▁mapping ▁a ▁vast ▁d unge on . ▁Play ers ▁navigate ▁through ▁the ▁d unge on ▁in ▁fixed ▁incre ments . ▁Time ▁passes ▁only ▁when ▁an ▁action ▁is ▁taken , ▁causing ▁movement , ▁random ▁enc oun ters , ▁and ▁combat ▁to ▁all ▁be ▁entirely ▁turn - based . ▁The ▁game ▁uses ▁a ▁first - person ▁view ▁to ▁present ▁the ▁d unge on ▁using ▁a ▁combination ▁of ▁relatively ▁simple ▁ 3 D ▁computer ▁graphics ▁for ▁environments ▁and ▁single - frame ▁ 2 D ▁spr ites ▁for ▁enemies . ▁ ▁E tri an ▁Od ys sey ▁requires