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 18 August 2016 - Add a guideYou've tricked me onceFinish the game 18 August 2016 - Add a guideMystery solvedFind all the secret files 18 August 2016 - Add a guideThe HoarderFind all collectibles 18 August 2016 - 1 guideNews junkieFind all the volunteer's voice recordings 18 August 2016 - 1 guideProfessional TouristFind all pages from the guide book 18 August 2016 - 1 guideThe CollectorFind 50% of collectibles 18 August 2016 - 1 guideAchieverFinish all quests in the game 18 August 2016 - 1 guideHunter-SeekerFind and kill all the most dangerous monstrosities located in dead zones 18 August 2016 - 1 guideJetboatKill 100 monsters using the boat's speed boost 18 August 2016 - Add a guideThe Hurt Mine LockerKill 10 monsters with one mine 18 August 2016 - 2 guidesJuggernautKill 100 enemies using charge attacks 18 August 2016 - Add a guideHurlerKill 100 monsters with thrown melee weapons 18 August 2016 - Add a guideFirst Do No HarmFinish hospital quests for Cecil 10 August 2016 - Add a guideIt's an OrderMark 100 opponents which were then killed by your co-op partners 11 July 2016 - Add a guideDefeat HarlowDefeat Harlow 11 June 2016 - Add a guideThe DocksEnter the docks in Quarantine Zone 11 June 2016 - Add a guideMeeting SerpoMake pact with Serpo 11 June 2016 - Add a guideCombat on the roofSurvive the horde on the roof 11 June 2016 - Add a guideAt Your ServiceRescue 20 NPCs that have been grabbed by monsters 11 June 2016 - Add a guideObtain level 70Obtain level 70 11 June 2016 - Add a guideMilitary BaseGain access to a long-range radio station 11 June 2016 - Add a guideThe CinemaClear out the cinema 11 June 2016 - Add a guideServing ScienceFinish quests for Dr. Kessler 10 June 2016 - Add a guideHenderson TownReach Henderson 10 June 2016 - Add a guideKing among KingsKill special enemies: Grenadier, Thug, Wrestler, Infected, Suicider, Screamer, Butcher, Floater. 10 June 2016 - Add a guideTwinsKill the Twins 10 June 2016 - Add a guideBreaching the TunnelsSuccessfully defend the tunnel entrance 10 June 2016 - Add a guideSiege HammerInstall a total of 5 barricades during hub defense 10 June 2016 - Add a guideBullyKill 100 monsters with a kick 04 June 2016 - Add a guideObtain level 50Obtain level 50 04 June 2016 - Add a guideBetter than the armKill 25 monsters with a chainsaw 04 June 2016 - 1 guideHeart of DarknessFind a boat for use in the jungle 03 June 2016 - Add a guideBrainLessKill 50 monsters by smashing, decapitating or shooting them in the head 03 June 2016 - Add a guideThe StormEscape from the ship 03 June 2016 - Add a guide