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 26 November 2020 - Add a guideIt's an OrderMark 100 opponents which were then killed by your co-op partners 22 November 2020 - Add a guideYou've tricked me onceFinish the game 21 November 2020 - Add a guideDefeat HarlowDefeat Harlow 21 November 2020 - Add a guideThe DocksEnter the docks in Quarantine Zone 21 November 2020 - Add a guideAchieverFinish all quests in the game 21 November 2020 - 1 guideMystery solvedFind all the secret files 21 November 2020 - Add a guideThe HoarderFind all collectibles 21 November 2020 - 1 guideMeeting SerpoMake pact with Serpo 21 November 2020 - Add a guideCombat on the roofSurvive the horde on the roof 21 November 2020 - Add a guideObtain level 70Obtain level 70 21 November 2020 - Add a guideProfessional TouristFind all pages from the guide book 20 November 2020 - 1 guideFirst Do No HarmFinish hospital quests for Cecil 20 November 2020 - Add a guideMilitary BaseGain access to a long-range radio station 20 November 2020 - Add a guideNews junkieFind all the volunteer's voice recordings 20 November 2020 - 1 guideThe Hurt Mine LockerKill 10 monsters with one mine 20 November 2020 - 2 guidesHunter-SeekerFind and kill all the most dangerous monstrosities located in dead zones 20 November 2020 - 1 guideServing ScienceFinish quests for Dr. Kessler 20 November 2020 - Add a guideTwinsKill the Twins 20 November 2020 - Add a guideJetboatKill 100 monsters using the boat's speed boost 20 November 2020 - Add a guideObtain level 50Obtain level 50 20 November 2020 - Add a guideHurlerKill 100 monsters with thrown melee weapons 20 November 2020 - Add a guideThe CollectorFind 50% of collectibles 20 November 2020 - 1 guideKing among KingsKill special enemies: Grenadier, Thug, Wrestler, Infected, Suicider, Screamer, Butcher, Floater. 20 November 2020 - Add a guideThe CinemaClear out the cinema 20 November 2020 - Add a guideJuggernautKill 100 enemies using charge attacks 20 November 2020 - Add a guideHenderson TownReach Henderson 20 November 2020 - Add a guideBreaching the TunnelsSuccessfully defend the tunnel entrance 19 November 2020 - Add a guideSiege HammerInstall a total of 5 barricades during hub defense 19 November 2020 - Add a guideBetter than the armKill 25 monsters with a chainsaw 19 November 2020 - 1 guideBullyKill 100 monsters with a kick 19 November 2020 - Add a guideHeart of DarknessFind a boat for use in the jungle 19 November 2020 - Add a guideAt Your ServiceRescue 20 NPCs that have been grabbed by monsters 18 November 2020 - Add a guideBrainLessKill 50 monsters by smashing, decapitating or shooting them in the head 18 November 2020 - Add a guideThe StormEscape from the ship 18 November 2020 - Add a guide