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 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 Easy 60"Score the record of 60 sec. on Easy difficulty Normal 60"Score the record of 60 sec. on Normal difficulty Hard 60"Score the record of 60 sec. on Hard difficulty Expert 60"Score the record of 60 sec. on Expert difficulty