Blacksea Odyssey Achievements Here is the full list of all 19 Blacksea Odyssey achievements.Filter Achievement View View Image viewList view Sort by TrueSteamAchievement desc TrueSteamAchievement asc Achievement name desc Achievement name asc TSA Ratio desc TSA Ratio asc Gamers desc Gamers asc Steam order Date won desc Date won asc Flag Filter All None 19 Offline Mode 19 Single Player 1 Main Storyline 1 Difficulty Specific 1 Collectable 1 Missable 2 Cumulative + 1 Cumulative - 1 Time/Date 1 Multiple Playthroughs Required Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply BrutalityUnlock by ripping off 100 enemy weak points. MercuryUnlock by beating the game in 60 minutes. GungnirUnlock by completing the game. BasiliskUnlock by equipping three poison spear runes at once. Huntress SpearUnlock by collecting a bounty without taking damage. Rade LawsonUnlock by killing Charybdis InfernalUnlock by equipping three fire spear runes at once. FrostUnlock by equipping three ice spear runes at once. OblivionUnlock by killing every boss in the game. ThunderboltUnlock by equipping three lighting spear runes. Emerald JonesUnlock by killing Leviathan. XezemothUnlock by killing Cthulhu. Key SpearUnlocked by opening up 500 chests. BruteUnlock by killing an enchanted boss. DualshotUnlock by having 20 items at once. Blood ThirsterUnlock by beating Elite Mode. JudgementUnlocked by completing the Bestiary. LucidityUnlock by clearing all enemy zones in a level. Elite ModeUnlock by beating the game with a score of 500,000 or greater.