Color Hoop Stack is a classic addictive sort puzzle game. Solve the puzzle by sorting colorful hoops. Color Hoop Stack is a challenging yet relaxing and totally free sort puzzle game to exercise your brain! Color Hoop Stack,sort puzzle game,brain training,puzzle game,hypercasual puzzle,mobile game,free puzzle game,color sorting,addictive puzzle,mind exercise,arcade game,board game,coloring game,3D game,puzzle,mouse controls,casual game,brain workout