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 wonThe Call of CthulhuInvoke Cthulhu! 20 January 2021 - Add a guideFluent in R’lyehianChoose all the replies in R’lyehian 20 January 2021 - Add a guideComplete revelationRead all the books of unholy knowledge 20 January 2021 - Add a guideThe Shadow Out of TimeDiscover all the murals of the disappeared tribe 20 January 2021 - Add a guideStrange secretsFind occult items 20 January 2021 - Add a guideNo prohibition for DarkwaterDeliver liquor to the sailors 20 January 2021 - Add a guideJohn Raymond LegrasseFind 20 hidden items 20 January 2021 - 1 guideDetective historianPiece together Margaret Wyckwood's memoirs 20 January 2021 - Add a guideThe most trivial objectDiscover all the small blue bottles 20 January 2021 - Add a guideNameless CultsRefuse to take part in the ritual 20 January 2021 - Add a guideThe Good SamaritanSave Mitchell 20 January 2021 - Add a guideThe Rats in the WallsMake the suspects talk by using a heavy hand 19 January 2021 - Add a guideThe delusional investigatorBe the plaything of an hallucination 18 January 2021 - Add a guideShared guiltPush Irene Sanders to the limit 18 January 2021 - Add a guideMore sober than Zadok AllenNever drink 18 January 2021 - Add a guideA brilliant mindUse the globe to open the secret passage 18 January 2021 - Add a guideFarewellRefuse the ritual 18 January 2021 - Add a guideFight destinySuccessfully carry out the counter ritual 18 January 2021 - Add a guideThe voice beyond the graveChat with a vision 18 January 2021 - 1 guideVoyage into historyOpen the sailor's chest in the whaling station 18 January 2021 - Add a guideThe Beast in the CaveEnter the beast’s den 18 January 2021 - Add a guideThe Abomination of DarkwaterKill 5 inhabitants who are being controlled 18 January 2021 - Add a guideIn the footsteps of Daniel UptonKill or spare Bradley 18 January 2021 - Add a guideAttack the docksEscape your fallen territory 18 January 2021 - Add a guideThe dreamlike investigationAccept the revelations 18 January 2021 - Add a guideThe OutsiderBanish the creature for good 18 January 2021 - Add a guideCompanion in armsSave Drake's life during the fight with the creature 18 January 2021 - 1 guideThe amulet of the AncientsLay your hands on Algernon Drake's treasure 18 January 2021 - Add a guideThe curse of SarahFind Sarah Hawkins 17 January 2021 - 1 guideCaught in the trapFall into Fuller's trap 31 October 2020 - Add a guideScholar of the unspeakableMeet Algernon Drake and accept his help 31 October 2020 - Add a guideThe White ShipLearn the secret of the Scylla 31 October 2020 - 1 guideHippocratic OathHeal all the patients 31 October 2020 - Add a guideThe BookRead the Necronomicon 10 September 2020 - Add a guideFrom BeyondBanish the Dimensional Shambler 10 September 2020 - Add a guideThe Thing on the DoorstepBanish the Dimensional Shambler using only one dagger 10 September 2020 - Add a guideBeyond realityAccept to read an unholy book 01 September 2020 - Add a guideJack of all tradesInspect 50 items 01 September 2020 - Add a guideThe aficionado of horrorMeet Francis Sanders 01 September 2020 - Add a guideSandmanMake a deal with a crazed inmate 01 September 2020 - Add a guideThe TempleTake part in the ritual in the caves 01 September 2020 - Add a guideThe pit of horrorFall into the sacrificial pit 01 September 2020 - Add a guideDetective Edward PierceReach the level of Expert in a skill 01 September 2020 - Add a guideThe Secret CaveDiscover the mansion’s secret passage 01 September 2020 - Add a guideMemoryExplore the memories of the Hawkins family 01 September 2020 - Add a guideThe Terrible Old ManConvince the caretaker to help you 01 September 2020 - 1 guideThe Strange High HouseGet driven to the Hawkins Mansion 01 September 2020 - Add a guideEx OblivioneFail a skill test 01 September 2020 - 1 guideThe Sarah Hawkins caseAccept the Sarah Hawkins case 01 September 2020 - Add a guide