Uboat Attack Achievements Here is the full list of all 23 Uboat Attack 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 23 Offline Mode 23 Single Player 2 Cumulative + 6 Level Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply SeamanPromote to Seaman rank EnsignPromote to Ensign rank AdmiralPromote to Admiral rank Novice sailorUnlock Gato Class ship Experienced marinerUnlock Hipper Class ship Sea dogUnlock Balao Class ship ConstructorBuild 50 ports Full steam ahead!Unlock all ship slots in Fleet mode Halfway thereUnlock half of the cards in Fleet mode I am invincibleWin 50 Fleet battles LiberatorFinish Liberation mode Risky gameReach level 20 in Raid mode Feel the power!Upgrade any ship to max level My best unitUpgrade any card to max level in Fleet mode FlawlessMake 5 perfect shots in one mission Let me show you my collectionUse all types of rockets in one mission What a precision!Shoot down an enemy torpedo during an underwater mission Special taskComplete bonus mission Ordinary solutions? Not for meComplete a mission without using basic torpedos All hands on deckComplete 10 classic mode missions in a row without failing All holes patchedUse revive DestructionUse the same special attack 3 times during one mission Save JackDestroy an iceberg