Cross Set Achievements Here is the full list of all 17 Cross Set achievements. It takes around 12-15 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 wonComplete 8Complete Level 8. 16 December 2015 - Add a guideCross Set MasteryClear every level. 16 December 2015 - Add a guideComplete 7Complete Level 7. 16 December 2015 - Add a guideLevel 8Reveal Level 8. 16 December 2015 - Add a guideComplete 6Complete Level 6. 16 December 2015 - Add a guideLevel 7Reveal Level 7. 16 December 2015 - Add a guideComplete 5Complete Level 5. 16 December 2015 - Add a guideLevel 6Reveal Level 6. 16 December 2015 - Add a guideComplete 4Complete Level 4. 15 December 2015 - Add a guideLevel 5Reveal Level 5. 15 December 2015 - Add a guideComplete 3Complete Level 3. 15 December 2015 - Add a guideLevel 4Reveal Level 4. 15 December 2015 - Add a guideComplete 2Complete Level 2. 15 December 2015 - Add a guideLevel 3Reveal Level 3. 15 December 2015 - Add a guideComplete 1Complete Level 1. 15 December 2015 - Add a guideLevel 2Reveal Level 2. 15 December 2015 - Add a guideFirst DaySolve one level. 10 December 2015 - Add a guide