Survivor - Castaway Island Achievements Here is the full list of all 11 Survivor - Castaway Island 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 Flag Filter All None 11 Offline Mode 11 Single Player 11 Versus Link flagsOR joinAND join Achievements without these flags What are achievement flags? Click to find outApply ImmunityFind an immunity idol Let there be lightLight a campfire Only one familyReach the merge StrategistMake an alliance MultitaskingCatch a fish, collect a coconut, gather water and bring back wood Lazy bonesTake a nap GossiperPlay a one to one and a group event during the same day MastermindAvoid elimination during council thanks to an immunity idol Real AdventurerWin a team trial and an individual trial in the same season ChampionWin a season LegendWin all seasons