Outbreak Achievements Here is the full list of all 39 Outbreak achievements.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 39 Offline Mode 39 Single Player 9 Main Storyline 4 Difficulty Specific 18 Cumulative + 8 Shop Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply AllWonNot wonPuzzlerSuccessfully overcame a puzzle. 10 July 2025 - Add a guideFirst KillDefeated your first undead threat. Locked - Add a guideUndead SlayerDefeated 20 undead threats. Locked - Add a guideUndead DestroyerDefeated 100 undead threats. Locked - Add a guideUndead ObliteratorDefeated 1000 undead threats. Locked - Add a guideArboristHealed yourself 20 times. Locked - Add a guideBotanistHealed yourself 200 times. Locked - Add a guideThe BeginningCleared your first scenario! Locked - Add a guideNow We're TalkingCleared 10 scenarios. Locked - Add a guideSurvival of the FittestCleared 100 scenarios. Locked - Add a guideNutritionistHealed yourself. Locked - Add a guideTutorialCleared the Tutorial scenario. Locked - Add a guideOutbreakCleared the Outbreak scenario. Locked - Add a guideMaster of UnlockingSolved 100 puzzles. Locked - Add a guideChasmalCleared the Chasmal scenario. Locked - Add a guideRecruitSurvived 5 scenarios on Normal Difficulty. Locked - Add a guideSurvivorSurvived 3 scenarios on Hard Difficulty. Locked - Add a guideHeroSurvived a scenario on Biohazard Difficulty. Locked - Add a guidePacifistSurvived a scenario on Hard or Biohazard Difficulty with one or fewer kills. Locked - Add a guideMiasmaCleared the Miasma scenario. Locked - Add a guideMarksmanLand 10 critical hits. Locked - Add a guideEnkindleCleared the Enkindle scenario. Locked - Add a guideBright FutureCleared all campaign scenarios. Locked - Add a guideFirst WaveCleared a wave in Onslaught. Locked - Add a guideIntrepidSurvived the first five waves in Onslaught. Locked - Add a guideEnduringSurvived the first ten waves in Onslaught. Locked - Add a guideResourcefulSurvived the first fifteen waves in Onslaught. Locked - Add a guidePreparedSurvived the first twenty waves in Onslaught. Locked - Add a guideHardenedSurvived the first twenty five waves in Onslaught. Locked - Add a guideUnstoppableSurvived the thirtieth wave in Onslaught. Locked - Add a guideThe Best DefenseConstructed your first barricade. Locked - Add a guideCarpenterConstructed 10 barricades. Locked - Add a guideCraftsmanConstructed 50 barricades. Locked - Add a guideArtisanConstructed 100 barricades. Locked - Add a guideConsumerPurchased a piece of equipment in Onslaught. Locked - Add a guideBargain HunterPurchased 20 pieces of equipment in Onslaught. Locked - Add a guideSecret ShopperPurchased 100 pieces of equipment in Onslaught. Locked - Add a guideBlack FridayPurchased 200 pieces of equipment in Onslaught. Locked - Add a guideCore ConceptYou failed to survive. Locked - Add a guide