Siphonophore Achievements Here is the full list of all 20 Siphonophore 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 What are achievement flags? Click to find outApply Opening the Way!Complete the First Gate Key Symbol. Pytho Defeated!Destroy the First of the Hyades Angels. Synecho Defeated!Destroy the Second of the Hyades Angels. Baccho Defeated!Destroy the Third of the Hyades Angels. Cardie Defeated!Destroy the Forth of the Hyades Angels. Niseis Defeated!Destroy the Fifth of the Hyades Angels. Relinquished from Nightmare!Destroy that which bars the way. Homeward Bound!Take the Portal that will bring you home. Follow the Pink Rabbit!Curiosity doesn't only affect Cats. The Student of Altered History!Read the 'Gates of the Archons' Novella. Gates of Mysterium!Enter a Code that Unlocks the Final Secret. All are One in Yog-Sothoth!Gain Access to 22 Pages from Cosmogony of the GOO. The Hungering Void!Feed a Soulwell any colored Core dropped by the Spawn of Yaldabaoth. Starburst! Thrill of the Hunt! A Most Dangerous Adversary! Right in the Sweet Spot! Seraph of Mass Destruction! Real Ultimate Power!Reach the Maximum Power Level. FLAWLESS VICTORY!All Levels, All Bosses, ZERO Deaths.