Seashell Achievements Here is the full list of all 10 Seashell 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 Wave of GratitudeReturn your first collection to the sea One Full PageDiscover all the description fragments for a single shell LiteraseaDiscover all the description fragments for every shell The ArtistFill a page with drawings HaliotidaeLog a legendary Abalone shell NautilidaeLog a legendary Nautilus shell XenophoridaeLog a legendary Carrier shell A Clear FavouriteLog 10 of the same species of shell in a single session Shell Yeah!Log 12 different species of shell in a single session Friend of the SeaAchieve a level 10 research badge