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 23 February 2024 - Add a guideIt's an OrderMark 100 opponents which were then killed by your co-op partners 23 February 2024 - Add a guideYou've tricked me onceFinish the game 23 February 2024 - Add a guideDefeat HarlowDefeat Harlow 23 February 2024 - Add a guideThe DocksEnter the docks in Quarantine Zone 23 February 2024 - Add a guideAchieverFinish all quests in the game 23 February 2024 - 1 guideMystery solvedFind all the secret files 23 February 2024 - Add a guideThe HoarderFind all collectibles 23 February 2024 - 1 guideTwinsKill the Twins 22 February 2024 - Add a guideThe Hurt Mine LockerKill 10 monsters with one mine 22 February 2024 - 2 guidesMeeting SerpoMake pact with Serpo 22 February 2024 - Add a guideCombat on the roofSurvive the horde on the roof 22 February 2024 - Add a guideFirst Do No HarmFinish hospital quests for Cecil 22 February 2024 - Add a guideMilitary BaseGain access to a long-range radio station 22 February 2024 - Add a guideNews junkieFind all the volunteer's voice recordings 22 February 2024 - 1 guideHunter-SeekerFind and kill all the most dangerous monstrosities located in dead zones 22 February 2024 - 1 guideProfessional TouristFind all pages from the guide book 22 February 2024 - 1 guideThe CinemaClear out the cinema 22 February 2024 - Add a guideServing ScienceFinish quests for Dr. Kessler 21 February 2024 - Add a guideHenderson TownReach Henderson 21 February 2024 - Add a guideKing among KingsKill special enemies: Grenadier, Thug, Wrestler, Infected, Suicider, Screamer, Butcher, Floater. 21 February 2024 - Add a guideHurlerKill 100 monsters with thrown melee weapons 21 February 2024 - Add a guideBreaching the TunnelsSuccessfully defend the tunnel entrance 21 February 2024 - Add a guideSiege HammerInstall a total of 5 barricades during hub defense 21 February 2024 - Add a guideThe CollectorFind 50% of collectibles 21 February 2024 - 1 guideObtain level 70Obtain level 70 21 February 2024 - Add a guideAt Your ServiceRescue 20 NPCs that have been grabbed by monsters 21 February 2024 - Add a guideJetboatKill 100 monsters using the boat's speed boost 21 February 2024 - Add a guideBetter than the armKill 25 monsters with a chainsaw 21 February 2024 - 1 guideJuggernautKill 100 enemies using charge attacks 21 February 2024 - Add a guideBullyKill 100 monsters with a kick 21 February 2024 - Add a guideObtain level 50Obtain level 50 20 February 2024 - Add a guideHeart of DarknessFind a boat for use in the jungle 20 February 2024 - Add a guideBrainLessKill 50 monsters by smashing, decapitating or shooting them in the head 20 February 2024 - Add a guideThe StormEscape from the ship 20 February 2024 - Add a guide