Treehouse Riddle Achievements Here is the full list of all 10 Treehouse Riddle 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 Treehouse RiddleComplete all achievements in Treehouse Riddle Opening Your HeartClear Chapter 1 RecoveryClear Chapter 2 SeasonsClear Chapter 3 RemembranceClear Chapter 4 Just PracticeClear Extra Chapter 1 Best of ThreeClear Extra Chapter 2 Crocodile TearsClear Extra Chapter 3 PresentClear Extra Chapter 4 Turbo GrandpaClear the final puzzle of Extra mode after telling Grandpa to go all out against you