Call of Cthulhu Achievements Here is the full list of all 49 Call of Cthulhu achievements. It takes around 12-15 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 Flag Filter All None 49 Offline Mode 49 Single Player 19 Main Storyline 7 Collectable 25 Missable 1 Cumulative + 1 Level Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply AllWonNot wonNameless CultsRefuse to take part in the ritual 29 March 2020 - Add a guideFluent in R’lyehianChoose all the replies in R’lyehian 29 March 2020 - Add a guideThe Shadow Out of TimeDiscover all the murals of the disappeared tribe 29 March 2020 - Add a guideThe Abomination of DarkwaterKill 5 inhabitants who are being controlled 29 March 2020 - Add a guideThe Rats in the WallsMake the suspects talk by using a heavy hand 29 March 2020 - Add a guideShared guiltPush Irene Sanders to the limit 29 March 2020 - Add a guideThe most trivial objectDiscover all the small blue bottles 29 March 2020 - Add a guideComplete revelationRead all the books of unholy knowledge 29 March 2020 - Add a guideJohn Raymond LegrasseFind 20 hidden items 29 March 2020 - 1 guideThe delusional investigatorBe the plaything of an hallucination 29 March 2020 - Add a guideNo prohibition for DarkwaterDeliver liquor to the sailors 29 March 2020 - Add a guideFarewellRefuse the ritual 29 March 2020 - Add a guideThe Call of CthulhuInvoke Cthulhu! 29 March 2020 - Add a guideSandmanMake a deal with a crazed inmate 29 March 2020 - Add a guideFight destinySuccessfully carry out the counter ritual 29 March 2020 - Add a guideThe voice beyond the graveChat with a vision 29 March 2020 - 1 guideVoyage into historyOpen the sailor's chest in the whaling station 29 March 2020 - Add a guideThe Beast in the CaveEnter the beast’s den 29 March 2020 - Add a guideDetective historianPiece together Margaret Wyckwood's memoirs 29 March 2020 - Add a guideThe Good SamaritanSave Mitchell 29 March 2020 - Add a guideIn the footsteps of Daniel UptonKill or spare Bradley 29 March 2020 - Add a guideAttack the docksEscape your fallen territory 29 March 2020 - Add a guideThe dreamlike investigationAccept the revelations 29 March 2020 - Add a guideCompanion in armsSave Drake's life during the fight with the creature 29 March 2020 - 1 guideThe OutsiderBanish the creature for good 29 March 2020 - Add a guideMore sober than Zadok AllenNever drink 29 March 2020 - Add a guideThe amulet of the AncientsLay your hands on Algernon Drake's treasure 29 March 2020 - Add a guideStrange secretsFind occult items 29 March 2020 - Add a guideThe curse of SarahFind Sarah Hawkins 29 March 2020 - 1 guideCaught in the trapFall into Fuller's trap 29 March 2020 - Add a guideScholar of the unspeakableMeet Algernon Drake and accept his help 29 March 2020 - Add a guideThe White ShipLearn the secret of the Scylla 29 March 2020 - 1 guideHippocratic OathHeal all the patients 29 March 2020 - Add a guideThe BookRead the Necronomicon 28 March 2020 - Add a guideFrom BeyondBanish the Dimensional Shambler 28 March 2020 - Add a guideThe Thing on the DoorstepBanish the Dimensional Shambler using only one dagger 28 March 2020 - Add a guideBeyond realityAccept to read an unholy book 28 March 2020 - Add a guideJack of all tradesInspect 50 items 28 March 2020 - Add a guideThe aficionado of horrorMeet Francis Sanders 28 March 2020 - Add a guideThe TempleTake part in the ritual in the caves 28 March 2020 - Add a guideThe pit of horrorFall into the sacrificial pit 28 March 2020 - Add a guideThe Secret CaveDiscover the mansion’s secret passage 28 March 2020 - Add a guideA brilliant mindUse the globe to open the secret passage 28 March 2020 - Add a guideMemoryExplore the memories of the Hawkins family 28 March 2020 - Add a guideDetective Edward PierceReach the level of Expert in a skill 28 March 2020 - Add a guideThe Strange High HouseGet driven to the Hawkins Mansion 28 March 2020 - Add a guideThe Terrible Old ManConvince the caretaker to help you 28 March 2020 - 1 guideThe Sarah Hawkins caseAccept the Sarah Hawkins case 28 March 2020 - Add a guideEx OblivioneFail a skill test 28 March 2020 - 1 guide