Dead Island: Riptide Definitive Edition Achievements Full list of all 35 Dead Island: Riptide Definitive Edition achievements. It takes around 20-25 hours to unlock all of the achievements on Windows.Filter Achievement View View Image viewList view Sort by Won first then 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 AllWonNot wonDream TeamComplete all the main quests cooperatively with any number of partners 27 November 2017 - Add a guideIt's an OrderMark 100 opponents which were then killed by your co-op partners 27 November 2017 - Add a guideYou've tricked me onceFinish the game 26 November 2017 - Add a guideJetboatKill 100 monsters using the boat's speed boost 26 November 2017 - Add a guideThe HoarderFind all collectibles 26 November 2017 - 1 guideProfessional TouristFind all pages from the guide book 26 November 2017 - 1 guideAchieverFinish all quests in the game 26 November 2017 - 1 guideNews junkieFind all the volunteer's voice recordings 26 November 2017 - 1 guideMystery solvedFind all the secret files 26 November 2017 - Add a guideFirst Do No HarmFinish hospital quests for Cecil 26 November 2017 - Add a guideDefeat HarlowDefeat Harlow 26 November 2017 - Add a guideThe DocksEnter the docks in Quarantine Zone 26 November 2017 - Add a guideMeeting SerpoMake pact with Serpo 25 November 2017 - Add a guideHunter-SeekerFind and kill all the most dangerous monstrosities located in dead zones 25 November 2017 - 1 guideObtain level 70Obtain level 70 25 November 2017 - Add a guideTwinsKill the Twins 25 November 2017 - Add a guideThe Hurt Mine LockerKill 10 monsters with one mine 25 November 2017 - 2 guidesCombat on the roofSurvive the horde on the roof 25 November 2017 - Add a guideMilitary BaseGain access to a long-range radio station 25 November 2017 - Add a guideKing among KingsKill special enemies: Grenadier, Thug, Wrestler, Infected, Suicider, Screamer, Butcher, Floater. 25 November 2017 - Add a guideThe CinemaClear out the cinema 25 November 2017 - Add a guideServing ScienceFinish quests for Dr. Kessler 25 November 2017 - Add a guideHenderson TownReach Henderson 25 November 2017 - Add a guideThe CollectorFind 50% of collectibles 25 November 2017 - 1 guideBreaching the TunnelsSuccessfully defend the tunnel entrance 22 November 2017 - Add a guideSiege HammerInstall a total of 5 barricades during hub defense 22 November 2017 - Add a guideHurlerKill 100 monsters with thrown melee weapons 21 November 2017 - Add a guideJuggernautKill 100 enemies using charge attacks 20 November 2017 - Add a guideAt Your ServiceRescue 20 NPCs that have been grabbed by monsters 19 November 2017 - Add a guideBetter than the armKill 25 monsters with a chainsaw 19 November 2017 - 1 guideBullyKill 100 monsters with a kick 19 November 2017 - Add a guideHeart of DarknessFind a boat for use in the jungle 19 November 2017 - Add a guideBrainLessKill 50 monsters by smashing, decapitating or shooting them in the head 18 November 2017 - Add a guideThe StormEscape from the ship 18 November 2017 - Add a guideObtain level 50Obtain level 50 18 November 2017 - Add a guide