Here is the full list of all 10 Simply Puzzles: Junctions achievements.
Complete 100 Junctions
Complete 90 Junctions
Complete 80 Junctions
Complete 70 Junctions
Complete 60 Junctions
Complete 50 Junctions
Complete 40 Junctions
Complete 30 Junctions
Complete 20 Junctions
Complete 10 Junctions