Grendel's Cave Achievements Here is the full list of all 10 Grendel's Cave achievements.Filter Achievement View View Image viewList view Sort 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 Intermediate Grendel SlayGiven for Slaying Grendel in an Intermediate Kingdom Type Intermediate Mother SlayGiven for Slaying Mom in an Intermediate Kingdom Type Intermediate Dragon SlayGiven for Slaying the Dragon in an Intermediate Kingdom Type Advanced Grendel SlayGiven for Slaying Grendel in an Advanced Kingdom Type Advanced Mother SlayGiven for Slaying Mom in an Advanced Kingdom Type Advanced Dragon SlayGiven for Slaying the Dragon in an Advanced Kingdom Type Tournament Grendel SlayGiven for Slaying Grendel in a Tournament Kingdom Type Tournament Mother SlayGiven for Slaying Mom in a Tournament Kingdom Type Tournament Dragon SlayGiven for Slaying the Dragon in a Tournament Kingdom Type King of Grendel's CaveGiven for having the Most Points and Value of all players of Grendel's Cave