Shelldiver Achievements Here is the full list of all 13 Shelldiver achievements. It takes around 6-8 hours to unlock all of the achievements on Windows.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 What are achievement flags? Click to find outApply AllWonNot wonHammock SleepGet your well deserved rest 24 December 2025 - Add a guideCleared IslandGet all achievements available 24 December 2025 - Add a guideBuilt to DiveMaxime all skills 24 December 2025 - Add a guideFirst 1QReach 1,000,000,000,000,000 Shells 24 December 2025 - Add a guideUltra Special Rainbow JellyfishCapture a rainbow jellyfish 23 December 2025 - Add a guideFirst 1TReach 1,000,000,000,000 Shells 23 December 2025 - Add a guide1000m DepthReach the depth of 1000 meters 23 December 2025 - Add a guideFirst 1BReach 1,000,000,000 Shells 23 December 2025 - Add a guide700m DepthReach the depth of 700 meters 21 December 2025 - Add a guideFirst 1MReach 1,000,000 Shells 20 December 2025 - Add a guide400m DepthReach the depth of 400 meters 19 December 2025 - Add a guideMake a Friend!Wave to a fellow turtle in the island 19 December 2025 - Add a guide100m DepthReach the depth of 100 meters 18 December 2025 - Add a guide