Project Rhombus Achievements Here is the full list of all 4 Project Rhombus achievements. It takes around 0-1 hour 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 wonExpert 60"Score the record of 60 sec. on Expert difficulty 05 August 2018 - Add a guideHard 60"Score the record of 60 sec. on Hard difficulty 30 July 2018 - Add a guideNormal 60"Score the record of 60 sec. on Normal difficulty 29 July 2018 - Add a guideEasy 60"Score the record of 60 sec. on Easy difficulty 11 July 2018 - Add a guide