GAT RAT Achievements Here is the full list of all 11 GAT RAT 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 Gun NutUnlock every gun WizardUnlock all spells MasterUnlock all perks Tomb InvaderDefeat the Amalgamation ExterminatorDefeat the Crimson Wraith I'm the Captain NowDefeat the Bandit Boss Laid to RestDefeat the Unremembered MultitaskerDefeat the Twin Guardians Calcium DeficiencyDefeat the Skeleton Lord God GamerDefeat the Anomaly EggFind and touch the hidden egg